Prediction and Planning Information for the Occultation by (704) Interamnia on 2007 September 9
Updated: 2007 September 7 UT, 20h UT
Some later updates to weather forecasts and plans were distributed only by e-mail and are not included here. More important are the results of the event, a preliminary account of which is given here. Occultation by the large asteroid 704 Interamnia Sat. night, Sun. am Sept. 9, s.e. Calif., Arizona, N.Mex., Kans., K.C., Iowa, n. Ill., s.Wisc., s. Mich., s. Ont., s. Quebec. Help us determine the 3-D shape of this 300-km asteroid; we obtained a very good profile from an occultation in 2003, and half a profile from another one in 1996, but we need another good profile that we could get from this occultation. But the star is mag. 11.5, about the same as Interamnia's, so video or drift-scan CCD observations are recommended; the star is near M37 in Auriga. The U.T. is 9:40 to 9:42 of Sept. 9. _____________________________________________________ Occultation by the large asteroid (704) Interamnia this weekend, Sun. am Sept. 9, at 9:40 UT (2:40 am PDT) in s.e. Calif., Arizona, and N.Mex.; at 9:41 UT in s. Colo., Kans., K.C., Iowa, n. Ill., and s.Wisc.; and at 9:42 UT (5:42 am EDT) in s. Mich., s. Ont., and s. Quebec (but twilight becomes strong east of Ottawa, and will be impossible to observe as far east as Quebec City). Help us determine the 3-D shape of this 300-km asteroid; we obtained a very good profile from an occultation in 2003, and half a profile from another one in 1996, but we need another good profile that we could get from this occultation. But the star is mag. 11.5, about the same as Interamnia's, so video or drift-scan CCD observations are recommended. The star is in Auriga near M37 at J2000 RA 5h 53m 54.8s, Dec +32d 58' 40"; it is TYC 2410-00061-1. If an occultation occurs, there will be a 0.8-mag. drop that will last up to 14s. A path map and finder charts of different scales are here. The first Astro Meteo forcast (46h prognosis) is now available. It shows a front just south of the path across the Midwest, with clear sky behind it. The best area, with access to the full path, seems to be in the Chicago to Madison, WI area, but also with good access, but slightly less transparency, southwest to Kansas City and into eastern Kansas. The northern half of the path is shown to be clear in the northern part of lower Michigan, and in Ontarion (Algonquin Park area looks good), but still very cloudy in the southern half of the path, including Michigan south of Lansing and much of southern Ontario, including the Toronto area. The maps show a fair amount of cloudiness in the Albuquerque area and other parts of the southern half of the path across New Mexico and s.e. Arizona, with a sizeable patch of clouds over the Tucson region. The latter would likely prevent Derald Nye's crucial planned observation near the southern limit; the maps show better conditions farther southeast, from Sonoita to southwesternmost New Mexico, so hopefully some observers there will try to observe, to cover the path in case there is a south shift. If not, Bob Sandy could cover the area just south of the southern limit from his home near Kansas City, but he might prefer to drive north or northwest for a mobile observation deeper within the path. Mobile observers in New Mexico will have better chances for clear skies driving northwest from Albuquerque towards Farmington, that is, in the northern half of the path. Of course, this might change with the next update that will be made by about 5h UT tonight. Also, Astro Meteo shows that conditions around Phoenix, AZ and southwest of there look quite good. I'm tentatively planning on catching a flight around 6 pm tomorrow (Sat.) to Chicago, and setting up 2 or 3 stations between there and Madison, WI, but I'll wait until tonight's weather update to decide that (I might switch to Detroit or Kansas City, if the updated forecast favors those areas over Chicago-Madison). I'll also wait for that to decide on where I'll set up my telescopes, to get a better idea of which fixed-site observers are likely to be clouded out. As of now, it looks quite hopeless for observers in the southernmost parts of Ontario, but just "iffy" for those in and just south of Albuquerque, I think it could go either way for them. The Accuweather forecast isn't as optimistic for the Midwestern part of the path, but they just give probabilities, which don't show that there should be a good clear area behind the front that's shown on the Astro Meteo maps. NOTE that I will not be able to update this Web site from now until after the Bilkis occultation on Monday, so if you want further updated information, I'll need to send them to you by e-mail, and I'll do that if you send me your e-mail address (if I don't have it in my list already) to my home e-mail of dunham@starpower.net. _______________________________ Station list for the Sunday morning, Sept. 9th Interamnia occultation. PLEASE LET US KNOW YOUR PLANS SO THAT MOBILE OBSERVERS DON'T JUST DUPLICATE YOUR OBSERVATION, BUT CAN BE DIRECTED TO MOST EFFECTIVELY FILL GAPS IN COVERAGE BY FIXED-SITE OBSERVERS. Below is a partial list of stations, similar to station lists that I've distributed for previous events. Later, I'll distribute a shorter version with notations indicating observers who have said they will try the event - claim your "chord" (distance from the central line) now so that mobile observers can avoid your line. In the list below, "north" or positive distances from center are more to the northwest, of center, while "south" or negative distances are more to the southeast, of center. * between "probability" and "location" indicates a visual fixed-site observer, V a fixed-site video observer, M a mobile video observer, and m a mobile visual observer. I may set up 2 or 3 stations across n.e. Illinois & s.e. Wisconsin if the weather forecast stays good for that area. So far, several observers have indicated their intention to observe this by e-mail, most mobile observers, and only two, at fixed observatories far from the path (outside the 3-sigma limits), have used Occult Watcher. We need many more fixed-site (and maybe a few more mobile) observers if we are going to obtain a useful outline of Interamnia that can be combined with the earlier profiles; please help us with this. Immediately below is a partial list of stations, similar to station lists that I've distributed for previous events. A much longer list of POTENTIAL stations follows the short one of committed observers. In the list below, "north" or positive distances from center are more to the northwest, of center, while "south" or negative distances are more to the southeast, of center. * between "probability" and "location" indicates a visual fixed-site observer, V a fixed-site video observer, M a mobile video observer, and m a mobile visual observer. I may set up 2 or 3 stations in the northern half of the path northwest of Albuquerque, but haven't decided where I might really go. The 2nd column gives the probability that an occultation will occur at the location. You need to use a fixed-space font such as Courier for the table to display properly. All observers especially within the "2-sigma" limits are encouraged to observe, at least from convenient near-home locations. I do not give the star's altitude, which will be quite high for all observers, from 30 deg. in San Diego to 63 deg. at Ottawa. We need more observers to effectively cover this wide path; please let me know your plans so that I can show them in a future update, especially if you plan to observe from a fixed site in the northern half of the path, or anywhere in the "wings" between the predicted limits and the corresponding predicted 3-sigma limit - these will be very important in the likely case that the actual path will pass north or south of the predicted path. Occultation of TYC 2410-00061-1 by 704 Interamnia on 2007 Sep 09 [Prediction of 2007 Aug 14.0] P r Dist. o Univ. from b Time Sun center . Location, observer 9h Alt km % m s o 340 0% V s. Minnesota Steve Messner 276 0% ** Northern limit plus 3-Sigma ** 239 2% ** Northern limit plus 2-Sigma ** 201 16% ** Northern limit plus 1-Sigma ** 164 50% *** Northern limit *** 125 85% M Quartzite AZ Jim Stoffaire 51 100% M Algonquin Park ON Guy Nason 0 100% **** Centre Line **** -21 100% W Collingwood ON Eric Briggs -28 100% M near Albuquerque NM Rich Nugent -53 100% M Bernalillo NM Maley & Ramotowski -96 97% V?LOS LUNAS NM WELCH~STEVE 40 55 -36 -110 93% V?Belen, NM Bill Wallace -120 88% V Belen, NM TwiningObs.TAA 40 54 -36 -130 82% W Sarnia ON Dennis Grey -164 50% *** Southern limit *** -173 40% V BLUE SPRINGS MO SANDY~ROBERT L. 41 34 -25 maybe mobile -188 26% W CoronaDeTucsonAZ NYE~DERALD D. 40 40 -40 -201 16% ** Southern limit plus 1-Sigma ** -239 2% ** Southern limit plus 2-Sigma ** -276 0% ** Southern limit plus 3-Sigma ** -376 0% V IN R. Walker NOTE that this list is NOT FINAL and WILL BE UPDATED, but I can not update this Web site again until after the Bilkis occultation. If you want further updated information, I'll need to send them to you by e-mail, and I'll do that if you send me your e-mail address (if I don't have it in my list already) to my home e-mail of dunham@starpower.net. _______________________________ The full list of POTENTIAL stations is below. NOTE THAT THIS IS ONLY A LIST OF POTENTIAL OBSERVERS AND POSSIBLE OBSERVING STATIONS; I'M SURE THAT NO OBSERVATION WILL BE MADE FROM MOST OF THESE LOCATIONS, SO ANY OBSERVATION THAT YOU CAN MAKE WILL BE VALUABLE. Occultation of TYC 2410-00061-1 by 704 Interamnia on 2007 Sep 09 [Prediction of 2007 Aug 14.0] P r Dist. o Univ. from b Time Sun center . Location, observer 9h Alt km % m s o 340 0% V s. Minnesota Steve Messner 276 0% ** Northern limit plus 3-Sigma ** 262 0% 650 Temecula 40 34 -43 260 0% AlbertLe MN Ken Fiscus 41 48 -22 260 1% 827 Saint-Felicien 42 57 -6 251 1% Oceanside CA Photo and Telescope 40 33 -43 248 1% Palm Desert CA Levy~Lampert 40 36 -42 246 1% Anza CA Orange Cty. A. S. 40 35 -42 244 2% Austin MN -- Sola Fide Obs 41 49 -22 241 2% G74 Escondido 40 34 -43 241 2% Palomar Mountain/NEAT/DSS 40 34 -43 240 2% Carlsbad CA Tom Harnish 40 33 -43 239 2% ** Northern limit plus 2-Sigma ** 234 3% 710 MPO Observatory, Florissant 41 8 -32 232 3% 716 Palmer Divide Observatory, 41 10 -32 230 4% Encinits CA Dr. Eugene Larr 40 33 -43 230 4% 712 USAF Academy Observatory 41 9 -32 224 5% Elbert CO ScottDonnellKiowaCk 41 10 -31 221 6% Colo Springs CO Mark Torres 41 10 -32 213 9% 934 Poway Valley 40 33 -43 212 10% LA JOLLA CA ALEXANDER~JAMES H. 40 32 -43 211 10% FALCON CO LEE~RONALD G. 41 10 -32 207 13% LaCrosse WI Robert Allen 41 54 -20 205 14% Ramona, CA Fred Bruenjes 40 33 -43 203 15% H54 Cedar Drive Observatory, Pu 42 3 -18 202 16% 680 Los Angeles 40 38 -41 201 16% ** Northern limit plus 1-Sigma ** 201 16% 685 Williams, AZ 40 46 -39 197 19% SAN DIEGO CA FALLA~DANIEL E. 40 32 -43 182 31% 721 Lime Creek 41 23 -28 180 33% 700 Chinle 40 53 -36 179 35% GreenBay WI Parmentier 8in L 42 4 -18 177 37% 714 Bagdad 40 43 -40 172 42% MLagunaO CA San Diego St.Univ. 40 33 -43 167 47% 689 U.S. Naval Observatory, Fla 40 47 -38 167 47% 762 Four Winds Observatory, Lak 42 11 -16 165 49% 690 Lowell Observatory, Flagsta 40 47 -38 164 50% *** Northern limit *** 157 58% G89 Kachina Observatory, Flagst 40 46 -38 154 61% PRESCOTT AZ WRIGHT Jr.~FULT 40 44 -39 150 65% North Bay ON 42 32 -12 148 67% Prescott AZ Bob Thompson 40 44 -39 148 67% Pueblo CO 41 8 -32 146 69% Tierra delSolOb, SDAA Observato 40 33 -43 144 70% French River/Hwy69 ON 42 28 -13 139 74% H42 Wartburg College Observator 41 48 -22 138 75% 684 Prescott 40 44 -39 136 78% Prescott AZ Donald Didlein 40 44 -39 129 83% G78 Desert Wanderer Observatory 40 34 -42 128 83% 847 Lunar Cafe Observatory 42 16 -15 125 85% M Quartzite AZ Jim Stoffaire 116 90% CedarFalls IA Tom Hockey 41 47 -22 114 91% Omaha NE - John Johnson 41 35 -25 114 91% Boone IA Fick Obs., Iowa St. 41 42 -23 111 92% Omaha NE - Robert Dunn 41 35 -25 106 94% AMES IA WORMLEY~SAMUEL 41 43 -23 103 95% Ames IA Robin Formaker 41 43 -23 99 96% Nevada IA George Forsyth 41 44 -23 96 97% Sheboygan WI 42 3 -18 92 97% WAUNAKEE WI BOB MANSKE 41 57 -20 90 98% Lincoln NE M. Gaskell & Johnso 41 33 -25 88 98% H51 Greiner Research Observator 41 56 -20 88 98% DODGEVILLE WI OESPER~DAVID 41 55 -20 87 98% TOPEKA KS MCMANUS~TERRI A 42 17 -15 84 98% HiginsLk MI Chuck Boren cottage 42 13 -16 77 99% 753 Washburn Observatory, Madis 41 57 -20 75 99% MADISON WI THOMAS B. JACOBS 41 57 -20 70 99% ParrySd. ON Emily Christenson 42 28 -12 67 100% Yuma AZ Brian Vorndam 40 36 -42 66 100% DES MOINES IA GALLOWAY~JOE 41 42 -23 65 100% G88 LAMP Observatory, New River 40 43 -39 64 100% 742 Drake University, Des Moines 41 42 -23 62 100% Gallup NM 40 53 -36 60 100% H38 Timberline Observatory, Urb 41 41 -23 58 100% G98 Calvin-Rehoboth Observatory 40 53 -36 57 100% Dubuque IA 41 52 -21 51 100% M Algonquin Park ON Guy Nason 49 100% COTTAGE WI MADISON ASTRO SOC. 41 56 -20 48 100% GRINNELL IA GRINNELL COLLEG 41 45 -22 43 100% CEDAR RA IA FRANK OLSEN 41 48 -22 42 100% Cedar Rapids, IA John Centala 8 41 48 -22 41 100% Quebec City PQ 42 58 -6 41 100% CedarRap IA HillsideO D.Plasenc 41 48 -22 39 100% CedarRpd IA Larry Black 41 48 -22 30 100% H96 Observatoire des Pleiades, 42 51 -8 27 100% GREENFIE WI MILWAUKEE A. S. OBS 42 0 -19 24 100% 924 Observatoire du Cegep de Tr 42 54 -7 24 100% Swisher IA OwlRidgeO DougSlaus 41 48 -22 23 100% 819 Val-des-Bois 42 43 -9 23 100% Phoenix AZ Leroy Paller 40 42 -40 20 100% 678 Fountain Hills 40 43 -39 17 100% Phoenix AZ John Matthews 40 42 -40 16 100% FOUNTAIN HILLSAZ LUCAS~GENE A. 40 43 -40 13 100% TroiRivieres PQ 42 53 -7 11 100% SCOTTSDALE AZ PETERSON~RANDY 40 42 -40 7 100% TEMPE AZ SCHMIDTKE~PAUL 40 42 -40 7 100% 439 ROTSE-III, Los Alamos 40 58 -35 4 100% 663 Red Mountain Observatory 40 43 -40 3 100% MESA AZ HERCHAK~JOHN Mobile 40 42 -40 3 100% H02 Sulphur Flats Observatory, 40 58 -35 0 100% **** Centre Line **** 0 100% Yerkes Obs., WI Steven Lucy 41 58 -19 -1 100% Iowa City IA 41 48 -22 -2 100% OwenSond ON Bruce County A. S. 42 24 -13 -2 100% Gilbert AZ Martin Bonadio 40 42 -40 -3 100% MtPlesnt MI CMU Obs.WayneOsborn 42 11 -16 -5 100% GILBERT AZ RATTLEY~GERALD 40 42 -40 -6 100% Gilbert AZ 1999Oc25Bill Peters 40 42 -40 -7 100% Racine WI 42 0 -19 -8 100% GRCO -- Randy Peterson 40 42 -40 -11 100% Mesa, AZ Martin Bonadio 40 42 -40 -13 100% 826 Plessissville 42 56 -7 -15 100% Chandler AZ Michael Collins 40 42 -40 -16 100% Rockford IL Amateur Astronomers 41 56 -20 -18 100% 748 Van Allen Observatory, Iowa 41 47 -22 -19 100% Gatinau QC Michael Vasseur 42 42 -10 -19 100% H89 Galaxy Blues Observatory, G 42 42 -10 -19 100% Kenosha WI 42 0 -19 -21 100% W Collingwood ON Eric Briggs -22 100% WhiteRck NM David Palmer 40 59 -35 -25 100% Hull PQ 42 42 -10 -25 100% Ottawa ON RASC Centre,R.Wagne 42 42 -9 -26 100% Bay City MI 42 14 -16 -27 100% Maricopa AZ WWO Mike Collins 40 41 -40 -28 100% M near Albuquerque NM Rich Nugent -28 100% 790 Dominion Observatory, Ottaw 42 42 -10 -29 100% Maricopa AZ StonehavenOb,S.Dodd 40 40 -40 -32 100% LakeVila IL Steve Ballaron 41 59 -19 -34 100% OTTAWA ON BURKE~BRIAN 42 42 -10 -39 100% 772 Boltwood Observatory, Stitt 42 41 -10 -41 100% SANTA FE NM MROZ~GENE 40 59 -35 -43 100% Saginaw MI 42 13 -16 -43 100% Grand Rapids MI 42 7 -17 -44 100% 679 San Pedro Martir 40 30 -44 -44 100% Globe AZ- Skyway Obs MOBILE 40 43 -39 -46 100% GLOBE AZ RON ZIEGLER bad eml 40 44 -39 -48 100% SANTA FE NM TITUS~GREGORY B 40 59 -35 -49 100% Rock Isl IL D. Renneke & Farrar 41 50 -21 -49 100% H04 Santa Fe 40 59 -35 -50 100% H62 Calvin College Observatory 42 7 -17 -50 100% Laval PQ 42 48 -8 -50 100% Buckhorn Observatory 42 32 -12 -51 100% Holland MI R.Wade&VanWylenSAAA 42 5 -18 -51 100% Moline IL Paul Castle 41 50 -21 -51 100% Barrie On Bill O'Neill,PC164 42 28 -13 -53 100% M Bernalillo NM Maley & Ramotowski -54 100% Kentwood MI John de Longpre 42 7 -17 -56 100% H03 Sandia View Observatory, Ri 40 56 -35 -57 100% Sycamore IL Dan Grubb 41 56 -20 -57 100% MONTREAL QU D. Brown; RASC 42 49 -8 -58 100% Lowell MI LowellObs.G.Persha 42 8 -17 -58 100% Montreal PQ 42 49 -8 -59 100% Sapello River,NM B.Ryan student 41 0 -34 -60 100% NORTH YORK ON NASON~GUY 42 36 -11 -61 100% PHOENIX AZ MATTHEWS~JOHN 40 42 -40 -62 100% Saranac, MI JdLongpre's si 42 8 -17 -67 100% Gneiss Hill Ob,O Guy Nason 42 36 -11 -68 100% 919 Desert Beaver Observatory 40 41 -40 -70 99% Caledonia, MI JdL gravel pit 42 7 -17 -71 99% Montrose MI RICHARD WALKER 42 13 -16 -73 99% Salina KS 41 25 -27 -73 99% ARIZONA CITY AZ LAWLER~HAZEL 40 41 -40 -75 99% 818 Gemeaux Observatory, Laval 42 48 -8 -75 99% 936 Ibis Observatory, Manhaatan 41 29 -26 -75 99% Arizona City AZ R. Peterson 10 40 40 -40 -76 99% BLOOMINGDALE IL BENJAMIN~BART 41 58 -19 -78 99% StCesare PQ Michel Senay 42 50 -8 -79 99% Holton, KS aprox. Mike Ford 41 32 -26 -80 99% 756 Dearborn Observatory, Evans 41 59 -19 -80 99% ALBUQUERQUE NM DULLECK~GEORGE 40 56 -35 -81 99% St Joseph MO 41 35 -25 -82 99% ALBQURQE NM MORGAN COL.RET.MACP 40 56 -35 -87 98% s. gravel pit, M John deLongpre 42 7 -17 -88 98% Peterborough ON 42 32 -12 -89 98% Dodge City KS 41 17 -29 -90 98% Tijeras NM Bruce Levin 40 56 -35 -92 97% 858 Tebbutt Observatory, Edgewo 40 57 -35 -92 97% 840 Flint 42 13 -16 -96 97% LOS LUNAS NM WELCH~STEVE 40 55 -36 -96 97% WATERLOO ON COLE-ARNAL~OSCA 42 25 -13 -96 97% V?LOS LUNAS NM WELCH~STEVE 40 55 -36 -97 96% Napierville, IL Jeffrey Madura 41 57 -19 -99 96% Lansing MI 42 10 -17 -101 95% Tijeras, NM Becky Ramotowski 40 56 -35 -102 95% 763 King City 42 27 -13 -104 95% 766 Michigan State University O 42 10 -17 -107 94% 301 Mont Megantic 42 56 -6 -109 93% G90 Three Buttes Observatory, T 40 42 -40 -110 93% V?Belen, NM Bill Wallace -110 93% MAPLE ON RAYMOND R. THOMPSON 42 27 -13 -110 93% Chicago, IL RyersonAS Ob-S 41 59 -19 -111 92% 779 David Dunlap Observatory, R 42 27 -13 -111 92% PICKERING ON DEMPSEY~FRANK 42 29 -12 -111 92% Sherbrok PQ Vincent Desmarais 42 54 -7 -112 92% Toronto ON Scott Masterton 42 28 -13 -114 91% BROCKVILLE ON FETTER~KEVIN 42 40 -10 -114 91% Belen, NM TwiningObs.TAA 40 54 -36 -114 91% H35 Leavenworth 41 33 -25 -115 91% WORTH IL ROBERT H. HAYS JR. 41 58 -19 -115 90% Starlight Cascade Obs. ON 42 37 -11 -117 90% Oshawa ON Michael J. Cook 42 29 -12 -117 90% near Topeka, KS HART 41 29 -26 -117 90% TOPEKA KS WILDS~RICHARD 41 29 -26 -118 89% H79 York University Observatory 42 27 -13 -120 88% V Belen, NM TwiningObs.TAA 40 54 -36 -120 88% Castletn On Cotterell~David 42 33 -11 -120 88% NORTH YO ON GUY NASON 42 27 -13 -121 88% H91 Reynolds Observatory, Potsd 42 43 -9 -121 88% Fredericton NB 43 12 -3 -121 88% Bayview ON Eric Briggs 42 27 -13 -122 87% CapillaP NM 1983_426Unm Obs. 40 55 -35 -123 87% KALAMAZOO MI ASMUS~PAUL 42 5 -18 -125 85% Cobourg ON - Tom Luton 42 32 -12 -125 85% Battle Creek MI 42 7 -17 -125 85% TOPEKA KS CRAIG A. MCMANUS 41 31 -26 -125 85% Toronto ON Vimal Lad 03/12/07 42 26 -13 -125 85% GUELPH ON PULLEY~HARRY 42 24 -13 -126 85% TOPEKA KS EASTON~REX 41 30 -26 -127 84% Toronto ON 1991_1_4R.McWatters 42 27 -13 -128 83% 734 Farpoint Observatory 41 30 -26 -128 83% OriolePw ON Geoff Gaherty 42 27 -13 -129 83% Waterloo On Oscar Cole-Arnal 42 24 -13 -129 83% Toronto On Cotterell~David 42 28 -13 -130 82% Tucson AZ Chris Vedeler 40 41 -40 -130 82% W Sarnia ON Dennis Grey -132 80% 777 Toronto 42 27 -13 -133 80% Canton NY Justin Pryzby 42 42 -9 -133 80% TUCSON AZ STAMM~JIM 40 41 -40 -135 78% TOPEKA KS MCMANUS~CRAIG A 41 30 -26 -136 77% 440 Elginfield Observatory 42 20 -14 -136 77% Milton ON Colin Haig 42 26 -13 -137 77% 768 Dearborn 42 15 -15 -137 76% Kingston ON 42 37 -10 -137 76% Gary IN 41 59 -19 -139 75% G96 Mt. Lemmon Survey 40 41 -40 -139 75% TUCSON AZ HARVEY~DAVID 40 41 -40 -139 75% 686 U. of Minn. Infrared Obs., 40 41 -40 -142 72% Magdalena NM Bill Ryan 40 52 -36 -142 72% 130km eneToronto David Cotterel 42 35 -11 -143 72% Misisaga ON Chris Malicki 42 26 -13 -143 71% Lawrence KS - Richard Wilds 41 32 -26 -144 70% 703 Catalina Sky Survey 40 41 -40 -144 70% TUCSON AZ WILSON~LARRY 40 41 -40 -147 68% 697 Kitt Peak, McGraw-Hill 40 39 -41 -147 67% 698 Mt. Bigelow 40 42 -40 -148 67% H36 Sandlot Observatory, Scrant 41 30 -26 -148 67% Lawrence KS - Dave Dyer 41 32 -26 -148 66% Tucson AZ Joe Bergeron 40 41 -40 -151 64% BONNER SPRINGSKS ROBINSON~WALTER 41 33 -25 -151 64% 694 Tumamoc Hill, Tucson 40 41 -40 -152 63% Tucson AZ SabinoCan.Obs.McGah 40 41 -40 -152 63% TUCSON AZ - UNIVERSITY OF AZ 40 41 -40 -153 61% 683 Goodricke-Pigott Observator 40 40 -40 -153 61% Birmgham MI Gary Gibbs 42 13 -16 -154 61% TUCSON AZ ALBERT P. VREELAND 40 41 -40 -154 60% Jackson MI 42 9 -17 -155 60% BONNER S KS WALTER L. ROBINSON 41 33 -25 -155 60% PEORIA IL OFFUTT~PETER W. 41 51 -21 -156 58% 702 Joint Obs. for cometary res 40 52 -36 -156 58% 290 Mt. Graham-VATT 40 44 -39 -156 58% Granger IN BUETER~CHUCK 42 3 -18 -159 56% Burlington ON 42 25 -13 -159 55% Dexter MI Chris Sarnecki 42 11 -16 -159 55% Kansas City MO 41 34 -25 -159 55% London ON 42 20 -14 -160 54% Fairfax VT Lawrence Garrett 42 49 -8 -160 54% 719 Etscorn Observatory 40 53 -36 -161 53% London ON David Clark 42 20 -14 -162 52% Socorro NM Vincent~Mark 40 53 -36 -162 52% SouthBnd IN Tom Laskowski vid. 42 3 -18 -163 52% MISSION KS J. DENNIS BREWER 41 33 -25 -164 50% *** Southern limit *** -164 50% H67 Stonegate Observatory, Ann 42 11 -16 -164 50% Livonia MI Chuck Boren 42 13 -16 -165 49% TUCSON AZ HILL~RICHARD 40 41 -40 -166 48% TUCSON AZ CRAWFORD~ROBERT 40 41 -40 -166 48% Hamilton ON Roger Hill & RASC 42 25 -13 -168 46% Lyndon, KS HART 41 30 -26 -168 46% Hamilton On 1987_124Eric Goldin 42 25 -13 -169 45% 849 Everstar Observatory, Olath 41 33 -25 -169 44% 767 Ann Arbor 42 11 -16 -171 42% 816 Rand Observatory 42 45 -9 -172 41% Morton IL Tooley~Curtis 41 51 -21 -173 40% V BLUE SPRINGS MO SANDY~ROBERT L. 41 34 -25 but may be mobile -174 39% e.Blue Springs,M Bob Sandy mobi 41 34 -25 -175 38% 739 Sunflower Observatory, Olat 41 33 -25 -176 38% Lakeville, IN Tom Laskowski 2 42 2 -18 -176 38% Dearborn MI Daniel Kmiecik 42 13 -16 -180 34% AnnArbor MI SteveLindner&McCaus 42 11 -16 -181 32% Inkster MI Milton French 42 13 -16 -182 31% Detroit MI 42 13 -16 -185 29% StCathrn ON HUGH N. A. MACLEAN 42 27 -13 -185 29% Dexter Ma 45thPar.Am.Ast.Main 43 2 -5 -187 27% Vail AZ Dickinson~David 40 41 -40 -188 26% W CoronaDeTucsonAZ NYE~DERALD D. 40 40 -40 -190 24% WICHITA KS RATCLIFFE~MARTI 41 23 -28 -197 19% 704 Lincoln Laboratory ETS, New 40 53 -36 -200 17% Louisbrg TX Powell Obs. 30", AC 41 32 -25 -200 17% 333 Desert Eagle Observatory 40 41 -40 -201 16% Adrian MI Ad.Col.viaR.Victor 42 10 -17 -201 16% ** Southern limit plus 1-Sigma ** -206 13% 745 Glasgow, Missouri 41 39 -24 -207 12% Whipple Observatory 40 39 -40 -208 12% HallamOb,Comber,ON SMastellotto 42 15 -15 -210 11% FARMINGT ME MAGRI~CHRISTOPHER 42 59 -6 -210 11% WritstnS AZ Smith, Mike 40 40 -40 -210 11% WICHITA KS ROBERT MCARTHUR 41 23 -28 -211 10% Orono Ma U Maine Plan'm & Ob 43 4 -5 -213 10% Tippecanoe, IN Tom Laskowski 3 42 2 -18 -215 9% Tonawnda NY Bill Watson 42 28 -13 -215 8% Grand Is NY Daniel Marcus 42 27 -13 -217 8% Bangor ME 43 3 -5 -222 6% G93 Sonoita Research Observator 40 40 -40 -222 6% Le Roy, KS C. & T. McManu 41 29 -26 -222 6% 297 Middlebury 42 48 -8 -223 6% Buffalo NY Buffalo Astr.Ass'n 42 27 -13 -223 6% G94 Sonoran Skies Observatory, 40 42 -40 -223 6% 451 West Skies Observatory, Mul 41 23 -28 -227 4% FAIRFIEL ME STOWERS,CLIFFORD 43 0 -6 -229 4% Watervil Ma Northern Stars Plan 43 0 -6 -229 4% G99 NF Observatory, Silver City 40 47 -38 -229 4% 926 Tenagra II Observatory 40 39 -40 -230 4% Tyrone NM - Gary Emerson 40 47 -38 -234 3% H63 DeKalb Observatory, Auburn 42 5 -17 -236 3% Rochster NY RIT Obs.M.Richmond 42 32 -12 -238 2% Climax, KS Richard Wilds 41 26 -27 -239 2% ** Southern limit plus 2-Sigma ** -247 1% Hamburg NY Lea Leavell 42 27 -13 -248 1% Iola KS Tom Campbell 41 29 -26 -250 1% Sierra Vista, AZ Patterson Obs. 40 40 -40 -252 1% 738 Observatory of the State Un 41 39 -24 -253 1% Springfield IL 41 49 -21 -253 1% Searsprt Ma Penobscot ValleySt. 43 2 -5 -255 1% NEWARK NY BRADLEY TIMERSON 42 33 -11 -256 1% SIERRA VISTA AZ GENT~ROBERT L. 40 40 -40 -257 1% Carrizozo, NM John Duchek 40 54 -36 -257 1% Colden NY Tristan DiLapo 42 27 -13 -260 1% Canadian TX Terrill Bartlett 41 12 -31 -261 0% 701 Junk Bond Observatory, Sier 40 40 -40 -261 0% G95 Hereford Arizona Observator 40 40 -40 -261 0% CLINTON MO NEUENSCHWANDER~ 41 34 -25 -262 0% Java Ctr NY Beaver Meadow Obs. 42 29 -12 -266 0% Urbana IL UIL Ob Stuart Levy 41 53 -20 -267 0% Lyme NH Donald Cooke 42 51 -8 -269 0% Amarillo TX 41 7 -32 -269 0% Urbana IL - Aart Olson 41 54 -20 -271 0% 925 Palominas Observatory 40 40 -40 -276 0% ** Southern limit plus 3-Sigma ** -376 0% V IN R. Walker _______________________________ David Dunham, 2007 Sept. 7, 5 pm EDT Phones home 301-474-4722; office 240-228-5609; cell 301-526-5590 office e-mail david.dunham@jhuapl.edu with Blackberry for mobile use home e-mail: dunham@starpower.net .