2012 TC4

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4037624000
Semi-major axis (a)1.6204484000 AU
Inclination (i)0.53425000°
Long. of Asc. Node (Ω)19.69505000°
Arg. of Perihelion (ω)26.57603000°
Mean Anomaly (M)324.44167000°
Mean Motion (n)0.4778056400°/day
Perihelion dist (q)0.96617230 AU
Aphelion dist (Q)2.27472450 AU
Orbital Period2.06277950 yr
Physical Parameters
H (abs. magnitude)26.71
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date
RMS Residual0.510″
Uncertainty1
Orbit TypeApollo
MOID0.000228 AU
Observations Used1121
Radar Obs Used9
Oppositions3
Arc Total2012-2017
First Observation Used
Last Observation Used2017-12-14
Observations (1138)
Date Type RA Dec Mag Band Observatory
2017-09-20 22:37:26 C 23 07 00.76 -01 18 07.6 v B18
2017-09-20 23:31:10 C 23 07 04.002 -01 17 49.39 U J04
2017-09-20 23:47:02 C 23 07 03.347 -01 17 49.63 U J04
2017-09-22 02:56:01 C 23 06 38.35 -01 19 55.8 u H21
2017-09-22 03:19:08 C 23 06 37.46 -01 19 57.4 u H21
2017-09-22 03:48:42 C 23 06 36.24 -01 19 59.7 u H21
2017-09-22 09:29:26 C 23 06 28.845 -01 19 51.98 L F51
2017-09-22 09:45:18 C 23 06 28.049 -01 19 53.41 L F51
2017-09-22 22:18:46 C 23 06 12.97 -01 21 25.4 v B18
2017-09-22 22:20:51 C 23 06 12.91 -01 21 25.7 v B18
2017-09-24 04:29:28 C 23 05 46.09 -01 23 40.0 u H21
2017-09-24 04:45:52 C 23 05 45.36 -01 23 41.4 u H21
2017-09-24 05:00:41 C 23 05 44.69 -01 23 42.8 u H21
2017-09-25 09:05:32 C 23 05 17.241 -01 25 26.98 L F51
2017-09-25 09:20:49 C 23 05 16.411 -01 25 28.27 L F51
2017-09-25 09:36:06 C 23 05 15.599 -01 25 29.65 L F51
2017-09-25 09:51:21 C 23 05 14.779 -01 25 30.84 L F51
2017-09-25 19:04:51 C 23 05 08.49 -01 27 04.1 v B18
2017-09-25 19:09:05 C 23 05 08.30 -01 27 04.5 v B18
2017-09-25 19:13:18 C 23 05 08.12 -01 27 04.9 v B18
2017-09-25 19:21:45 C 23 05 07.71 -01 27 05.6 v B18
2017-09-26 01:39:01 C 23 05 04.17 -01 24 53.5 u 807
2017-09-26 01:51:55 C 23 05 03.51 -01 24 55.0 u 807
2017-09-26 02:04:24 C 23 05 02.87 -01 24 56.0 u 807
2017-09-26 06:49:05 C 23 04 53.87 -01 27 46.8 o 291
2017-09-26 06:55:18 C 23 04 53.57 -01 27 47.4 o 291
2017-09-26 06:59:00 C 23 04 52.84 -01 27 52.1 U H01
2017-09-26 07:01:32 C 23 04 53.24 -01 27 47.9 o 291
2017-09-26 07:09:18 C 23 04 52.34 -01 27 53.0 U H01
2017-09-26 07:22:07 C 23 04 51.70 -01 27 54.0 U H01
2017-09-26 07:39:15 C 23 04 50.86 -01 27 55.6 U H01
2017-09-28 06:14:44 C 23 04 07.94 -01 32 27.1 q G96
2017-09-28 06:22:58 C 23 04 07.46 -01 32 28.4 q G96
2017-09-28 06:42:36 C 23 04 06.34 -01 32 30.3 q G96
2017-09-28 07:02:45 C 23 04 05.06 -01 32 31.3 q G96
2017-09-28 10:06:32 C 23 04 01.813 -01 32 21.94 L F51
2017-09-28 10:57:19 C 23 03 58.847 -01 32 26.88 L F51
2017-10-01 04:16:46 C 23 03 06.74 -01 40 56.4 q U69
2017-10-01 06:45:24 C 23 02 57.40 -01 41 17.2 q U69
2017-10-01 07:28:18 C 23 02 54.70 -01 41 23.1 q U69
2017-10-02 04:17:10 C 23 02 41.71 -01 44 14.1 U H01
2017-10-02 04:26:31 C 23 02 41.07 -01 44 15.6 U H01
2017-10-02 04:36:38 C 23 02 40.35 -01 44 17.2 U H01
2017-10-02 05:05:17 C 23 02 38.33 -01 44 21.5 U H01
2017-10-06 21:41:45 C 23 00 23.15 -02 12 49.9 q 203
2017-10-06 22:15:07 C 23 00 19.26 -02 13 03.8 q 203
2017-10-06 22:47:32 C 23 00 19.07 -02 12 38.2 U I89
2017-10-06 23:09:23 C 23 00 16.29 -02 12 47.4 U I89
2017-10-06 23:31:06 C 23 00 13.52 -02 12 56.3 U I89
2017-10-07 01:26:27 C 23 00 30.65 -02 13 28.8 U W34
Radar Observations (9)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2017-10-09 07:30:00 364428.52 1 Hz 8560 -14 -14
2017-10-10 06:50:00 7487595 20 us 8560 -14 -14
2017-10-10 08:00:00 7308629 1 us 8560 -14 -14
2017-10-10 08:40:00 7207546.1 0.25 us 8560 -14 -14
2017-10-11 06:10:00 3797485.8 0.25 us 8560 -14 -14
2017-10-11 07:20:00 3616812.98 0.25 us 8560 -14 -14
2017-10-12 02:21:30 278809.719 1 Hz 7190 -9 -13
2017-10-14 12:30:00 8748873.6 0.5 us 8560 -14 -14
2017-10-14 13:10:00 8848922.729 0.25 us 8560 -14 -14
Station codes
-14 DSS-14 Goldstone (70-m) -13 DSS-13 Goldstone (34-m) -9 Green Bank GBT (100-m)