NEODyS-2

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(99942) Apophis  ▹ 
OBSERVATIONAL INFORMATION

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Designation Type N Date and time Radar range/range rate trx station rec station Quality
yr-mo-day hh:mm:ss type km or km/day precision a priori rms F bias residual χ used
Apophis c 2005-01-27 23:31:00 DOP 5.48782e+5 1.36040 1.36040 F 0.00000 0.25184 251 251 0.19 Yes
Apophis c 2005-01-29 00:00:00 DOP 5.57835e+5 1.36040 1.36040 F 0.00000 -0.07789 251 251 0.06 Yes
Apophis c 2005-01-29 00:00:00 DEL 2.87844e+7 0.59958 0.59958 F 0.00000 0.06535 251 251 0.16 Yes
Apophis c 2005-01-30 00:18:00 DEL 2.93509e+7 0.67453 0.67453 F 0.00000 0.07065 251 251 0.14 Yes
Apophis c 2005-01-30 00:18:00 DOP 5.64838e+5 0.81624 0.81624 F 0.00000 -0.32265 251 251 0.4 Yes
Apophis c 2005-08-07 17:07:00 DOP -4.45494e+4 1.08832 1.08832 F 0.00000 0.27869 251 251 0.26 Yes
Apophis c 2006-05-06 12:49:00 DOP 6.43508e+5 0.54416 0.54416 F 0.00000 -0.05072 251 251 0.09 Yes
Apophis c 2012-12-21 11:10:00 DOP -8.77409e+4 0.37824 0.37824 F 0.00000 0.00081 253 253 0 Yes
Apophis c 2012-12-22 11:00:00 DEL 1.53918e+7 0.44969 0.44969 F 0.00000 -0.36077 253 253 1.05 Yes
Apophis c 2013-01-03 10:00:00 DEL 1.46058e+7 0.44969 0.44969 F 0.00000 -0.18295 253 253 0.43 Yes
Apophis c 2013-01-05 10:50:00 DEL 1.45265e+7 0.44969 0.44969 F 0.00000 -0.14820 253 253 0.34 Yes
Apophis c 2013-01-06 08:20:00 DEL 1.45006e+7 0.44969 0.44969 F 0.00000 -0.10729 253 253 0.25 Yes
Apophis c 2013-01-09 08:00:00 DEL 1.44577e+7 0.14990 0.14990 F 0.00000 -0.04779 253 253 0.38 Yes
Apophis c 2013-01-10 08:00:00 DEL 1.44609e+7 0.22484 0.22484 F 0.00000 0.06748 253 253 0.32 Yes
Apophis c 2013-01-14 09:50:00 DEL 1.45824e+7 0.14990 0.14990 F 0.00000 0.06793 253 253 0.54 Yes
Apophis c 2013-01-16 06:30:00 DEL 1.47028e+7 0.14990 0.14990 F 0.00000 0.08933 253 253 0.73 Yes
Apophis c 2013-02-18 01:36:00 DEL 2.36693e+7 0.14990 0.14990 F 0.00000 -0.07951 251 251 0.73 Yes
Apophis c 2013-02-20 01:27:00 DEL 2.45202e+7 0.14990 0.14990 F 0.00000 -0.05014 251 251 0.46 Yes
Apophis c 2013-03-15 23:59:00 DEL 3.52587e+7 0.29979 0.29979 F 0.00000 0.23114 251 251 2.1 Yes
Apophis c 2013-03-15 23:59:00 DOP 4.40648e+5 1.29510 1.29510 F 0.00000 -0.79506 251 251 0.61 Yes

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