Circular No. 2224 Central Bureau for Astronomical Telegrams INTERNATIONAL ASTRONOMICAL UNION Postal Address: Central Bureau for Astronomical Telegrams Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A. Cable Address: SATELLITES, NEWYORK Western Union: RAPID SATELLITE CAMBMASS AN APPEAL TO REPORT FAST MOVING OBJECTS Dr. Hannes Alfven and Dr. Tom Gehrels write: "Affimative response has been obtained regarding the feasibility of space missions to asteroids in the late 1970's. The interest in nearby asteroids is, therefore, greatly enhanced [see Science (1970) 167, 139]. We appeal to all observers to report approximate positions, but without delay (wire or call collect, if possible), to us when a trail of a fast moving object is found on a photographic plate. Address: Dr. Tom Gehrels, Lunar and Planetary Laboratory, University of Arizona, Tucson, Arizona 85721, U.S.A. Telephone: (602) 884-1222." PERIODIC COMET CURJUMOV-GERASIMENKO (1969h) The following precise positiolis have been reported: 1970 UT R. A. (1950) Decl. Observer Jan. 5.34851 11 32 20.94 +15 09 08.0 Roemer 5.35903 11 32 21.06 +15 09 09.8 " 7.05588 11 32 38.48 +15 15 04.8 Mrkos 7.06699 11 32 38.86 +15 15 12.4 " 13.05109 11 32 41.05 +15 40 58.8 " 14.03539 11 32 33.07 +15 45 28.4 " Feb. 1.96111 11 22 06.86 +17 46 40.4 " 6.13017 11 17 41.97 +18 16 38.5 Milet 6.94390 11 17 16.85 +18 21 48.2 Mrkos E. Roemer (Lunar and Planetary Laboratory). 229-cm Steward Observatory reflector, Kitt Peak. Measurer: Mrs. B. Schreur. A Mrkos (Klet Observatory). 40-cm f/2.5 Maksutov reflector. Communicated by J. M. Mohr and V. Vanysek. B. Milet (Nice Observatory). Image very weak, doubtful. COMET TAGO-SATO-KOSAKA (1969g) Further precise positions have been reported as follows: 1970 UT R. A. (1950) Decl. Observer Jan. 25.74861 1 10 25.71 + 1 57 09.7 Antal 25.75347 1 10 28.14 + 1 58 12.1 " 25.76944 1 10 36.20 + 2 01 33.7 " 26.71806 1 18 28.80 + 5 15 26.6 " 26.72222 1 18 30.76 + 5 16 14.9 Antal 27.80679 1 26 58.81 + 8 42 16.0 Argue 31.40012 1 51 33.26 +18 10 04.9 Seki 31.40150 1 51 33.69 +18 10 15.7 " 31.40990 1 51 36.78 +18 11 24.7 " 31.41129 1 51 37.30 +18 11 35.0 " Feb. 1.52720 1 58 18.61 +20 35 04.0 " 1.52859 1 58 19.02 +20 35 12.6 " 1.53001 1 58 19.25 +20 35 21.0 " 2.73193 1 59 30.39 +20 59 53.2 Mrkos 3.48692 2 09 11.85 +24 15 39.9 Seki 3.74593 2 10 33.94 +24 42 05.6 Mrkos 4.42170 2 14 02.44 +25 48 29.4 Seki 4.42379 2 14 03.17 +25 48 38.4 " 5.53970 2 19 33.40 +27 30 14.9 " 6.80536 2 25 18.26 +29 11 09.8 Mrkos 6.80870 2 25 30.76 +29 14 45.2 Debehogne 6.81251 2 25 31.78 +29 15 02.9 " 6.82082 2 25 34.31 +29 15 42.7 " 7.74340 2 29 42.19 +30 25 12.2 Antal 7.74896 2 29 43.65 +30 25 35.7 " 7.79062 2 29 54.57 +30 28 36.6 " 7.81215 2 29 59.92 +30 30 09.4 " 8.54526 2 33 10.00 +31 21 34.3 Seki 8.54734 2 33 10.56 +31 21 41.8 " 8.54942 2 33 11.05 +31 21 51.4 " 9.49317 2 37 08.16 +32 23 50.5 " 9.78700 2 38 20.62 +32 42 12.4 Debehogne 10.51609 2 41 15.88 +33 26 09.3 Seki 10.51962 2 41 16.68 +33 26 21.4 " 10.80865 2 42 25.45 +33 43 07.7 Mrkos 11.77686 2 46 09.60 +34 36 46.0 " 11.81087 2 46 17.39 +34 38 34.7 Debehogne 11.81253 2 46 17.75 +34 38 42.7 " 11.81530* 2 46 18.56 +34 38 49.0 " 11.81657 2 46 18.60 +34 38 54.6 " 12.52442 2 48 57.69 +35 15 45.2 Seki 12.52581 2 48 58.10 +35 15 49.5 " 12.52720 2 48 58.36 +35 15 54.2 " M. Antal (Skalnate Pleso Observatory). 30-cm f/5 astrograph. A. N. Argue (University of Cambridge Observatories). 43/61-cm Schmidt. Measurer: Miss Heather A. Couper. T. Seki (Kochi Observatory). A. Mrkos (Klet Observatory). Communicated by V. Vanysek. H. Debehogne (Royal Observatory, Uccle). 40-cm f/5 double astrograph. Measurer: G. Roland. * Measurement difficult. 1970 March 12 (2224) Brian G. Marsden
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