138258 (2000 GD2)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4767093203 ± 1.67e-07
Semi-major axis (a)0.7577641675 AU ± 3.53e-09
Inclination (i)32.13571947° ± 2.54e-05
Long. of Asc. Node (Ω)358.11192981° ± 2.39e-06
Arg. of Perihelion (ω)16.98570272° ± 1.21e-05
Mean Anomaly (M)97.78126582° ± 9.06e-05
Mean Motion (n)1.4942084181°/day ± 1.04e-08
Perihelion dist (q)0.39653093 AU ± 1.27e-07
Aphelion dist (Q)1.11899741 AU ± 1.27e-07
Orbital Period0.65963106 yr ± 4.61e-09
Physical Parameters
H (abs. magnitude)18.98
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.528″
Uncertainty0
Orbit TypeAten
MOID0.071521 AU
Observations Used224
Radar Obs Used2
Oppositions2
Arc Total1998-2002
First Observation Used1998-03-29
Last Observation Used2023-05-02
Observations (245)
Date Type RA Dec Mag Band Observatory
2002-03-04 18:24:03 C 16 50 20.13 +26 44 36.5 349
2002-03-06 10:51:16 C 16 31 52.28 +27 12 21.4 16.9 c 704
2002-03-06 11:10:23 C 16 31 42.26 +27 12 35.4 16.9 c 704
2002-03-06 11:30:46 C 16 31 31.38 +27 12 49.1 16.8 c 704
2002-03-06 11:50:20 C 16 31 21.04 +27 13 01.6 16.7 c 704
2002-03-06 12:10:34 C 16 31 10.14 +27 13 14.8 16.5 c 704
2002-03-09 03:10:56 C 15 51 59.38 +27 40 14.4 c 118
2002-03-09 03:14:18 C 15 51 56.81 +27 40 14.7 c 118
2002-03-09 03:18:29 C 15 51 53.61 +27 40 15.3 c 118
2002-03-09 11:08:20 C 15 45 57.06 +27 41 02.3 c 670
2002-03-09 12:41:32 C 15 44 41.76 +27 41 03.8 c 670
2002-03-09 18:01:04 C 15 40 28.38 +27 40 37.8 c 379
2002-03-09 18:04:20 C 15 40 25.71 +27 40 37.0 c 379
2002-03-09 18:20:34 C 15 40 12.02 +27 40 35.8 c 379
2002-03-09 18:23:49 C 15 40 09.37 +27 40 34.8 c 379
2002-03-10 23:00:31 C 15 14 56.257 +27 27 18.18 a 112
2002-03-10 23:03:45 C 15 14 53.190 +27 27 15.25 a 112
2002-03-10 23:06:25 C 15 14 50.641 +27 27 12.74 a 112
2002-03-10 23:09:29 C 15 14 47.666 +27 27 11.78 a 112
2002-03-10 23:12:48 C 15 14 44.419 +27 27 09.77 a 112
2002-03-11 15:56:00 C 14 58 00.50 +27 11 13.5 m 428
2002-03-11 15:57:35 C 14 57 58.80 +27 11 11.7 m 428
2002-03-11 15:58:57 C 14 57 57.43 +27 11 09.5 m 428
2002-03-11 15:59:43 C 14 57 56.54 +27 11 08.5 m 428
2002-03-11 18:07:35 C 14 55 40.62 +27 06 34.3 379
2002-03-11 18:17:20 C 14 55 30.09 +27 06 21.9 379
2002-03-11 22:00:54 C 14 51 37.32 +26 59 53.0 151
2002-03-11 22:02:50 C 14 51 35.28 +26 59 50.1 151
2002-03-11 22:03:47 C 14 51 34.20 +26 59 48.5 151
2002-03-11 22:05:22 C 14 51 32.53 +26 59 46.6 151
2002-03-11 22:08:40 C 14 51 28.96 +26 59 41.6 151
2002-03-11 22:11:49 C 14 51 25.57 +26 59 36.9 151
2002-03-12 02:07:40 C 14 47 05.42 +26 53 22.0 c 118
2002-03-12 02:08:25 C 14 47 04.58 +26 53 20.5 c 118
2002-03-12 02:09:09 C 14 47 03.76 +26 53 19.5 c 118
2002-03-12 02:10:44 C 14 47 01.99 +26 53 16.9 c 118
2002-03-13 01:01:43 C 14 20 50.09 +26 01 27.2 c 198
2002-03-13 01:05:24 C 14 20 45.60 +26 01 16.9 c 198
2002-03-13 01:14:06 C 14 20 35.03 +26 00 53.5 c 198
2002-03-13 01:16:05 C 14 20 32.58 +26 00 47.9 c 198
2002-03-13 01:19:45 C 14 20 28.10 +26 00 37.9 c 198
2002-03-13 14:54:23 C 14 03 50.27 +25 17 54.4 379
2002-03-13 14:55:37 C 14 03 48.75 +25 17 50.5 379
2002-03-13 15:04:31 C 14 03 37.36 +25 17 20.0 379
2002-03-13 15:06:27 C 14 03 34.89 +25 17 13.4 379
2002-03-13 15:10:28 C 14 03 29.69 +25 16 59.6 379
2002-03-14 23:19:58 C 13 21 41.76 +22 54 18.0 c 084
2002-03-15 01:01:49 C 13 19 25.43 +22 45 34.9 c 118
2002-03-15 01:04:18 C 13 19 22.03 +22 45 21.5 c 118
2002-03-15 01:06:29 C 13 19 19.11 +22 45 09.8 c 118
Radar Observations (2)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2002-03-12 08:20:00 476248 0.5 Hz 8560 -14 -14
2002-03-16 07:20:00 -9360.8 0.5 Hz 8560 -14 -14
Station codes
-14 DSS-14 Goldstone (70-m)