2013 GR38

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5566029085 ± 2.96e-08
Semi-major axis (a)1.7893889730 AU ± 1.18e-09
Inclination (i)4.58860116° ± 5.71e-06
Long. of Asc. Node (Ω)218.63649803° ± 9.49e-06
Arg. of Perihelion (ω)68.41141060° ± 1.19e-05
Mean Anomaly (M)67.68050808° ± 5.66e-06
Mean Motion (n)0.4117704160°/day ± 4.06e-10
Perihelion dist (q)0.79340987 AU ± 5.30e-08
Aphelion dist (Q)2.78536808 AU ± 5.30e-08
Orbital Period2.39363064 yr ± 2.36e-09
Physical Parameters
H (abs. magnitude)21.96
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.292″
Uncertainty0
Orbit TypeApollo
MOID0.003129 AU
Observations Used147
Radar Obs Used2
Oppositions1
Arc Total2013-2025
First Observation Used2013-03-05
Last Observation Used2025-03-27
Observations (166)
Date Type RA Dec Mag Band Observatory
2013-04-14 00:52:10 C 12 29 26.09 -12 45 53.0 t 204
2013-04-14 05:36:15 C 12 28 53.14 -12 41 23.0 u H21
2013-04-14 05:40:42 C 12 28 52.55 -12 41 18.7 u H21
2013-04-14 05:48:32 C 12 28 51.50 -12 41 11.4 u H21
2013-04-15 17:23:03 C 12 24 18.00 -12 03 23.6 q D90
2013-04-15 17:28:50 C 12 24 17.21 -12 03 16.9 q D90
2013-04-15 17:34:39 C 12 24 16.33 -12 03 09.3 q D90
2013-04-18 02:30:17 C 12 15 51.54 -10 52 15.6 q I15
2013-04-18 02:36:39 C 12 15 50.33 -10 52 06.6 q I15
2013-04-18 02:43:00 C 12 15 49.19 -10 51 57.3 q I15
2013-04-18 03:47:38 C 12 15 40.03 -10 50 15.8 o 291
2013-04-18 03:48:30 C 12 15 39.87 -10 50 14.4 o 291
2013-04-18 03:49:22 C 12 15 39.74 -10 50 13.4 o 291
2013-04-19 05:58:32 C 12 11 05.74 -10 10 05.8 u 703
2013-04-19 06:07:28 C 12 11 04.02 -10 09 50.6 u 703
2013-04-19 06:16:24 C 12 11 02.25 -10 09 36.5 u 703
2013-04-19 06:25:26 C 12 11 00.45 -10 09 21.8 u 703
2013-04-19 07:53:56 C 12 10 45.867 -10 06 46.46 t F65
2013-04-19 07:54:55 C 12 10 45.665 -10 06 44.71 t F65
2013-04-19 09:49:16 C 12 10 22.581 -10 03 35.42 L F51
2013-04-19 10:06:55 C 12 10 19.003 -10 03 05.73 L F51
2013-04-19 10:40:44 C 12 10 12.202 -10 02 08.81 L F51
2013-04-20 04:08:28 C 12 06 54.79 -09 31 56.1 o 291
2013-04-20 04:09:46 C 12 06 54.52 -09 31 53.9 o 291
2013-04-20 04:11:03 C 12 06 54.23 -09 31 51.5 o 291
2013-04-21 03:06:57 C 12 02 07.12 -08 47 52.9 u H21
2013-04-21 03:10:30 C 12 02 06.29 -08 47 45.6 u H21
2013-04-21 03:14:14 C 12 02 05.41 -08 47 38.0 u H21
2013-04-21 03:18:09 C 12 02 04.50 -08 47 30.1 u H21
2013-04-21 03:22:24 C 12 02 03.50 -08 47 21.5 u H21
2013-04-21 04:44:11 C 12 01 45.77 -08 44 27.6 o 691
2013-04-21 04:46:40 C 12 01 45.25 -08 44 22.2 o 691
2013-04-21 04:49:13 C 12 01 44.65 -08 44 17.1 o 691
2013-04-24 22:42:37 C 11 37 14.41 -04 47 30.1 t 204
2013-04-24 22:52:56 C 11 37 10.73 -04 46 56.1 t 204
2013-04-24 23:03:27 C 11 37 07.01 -04 46 20.5 t 204
2013-04-25 12:10:46 C 11 32 33.87 -03 58 25.4 q D90
2013-04-25 12:17:22 C 11 32 31.30 -03 58 00.9 q D90
2013-04-25 12:23:58 C 11 32 28.74 -03 57 37.2 q D90
2013-04-26 03:25:46 C 11 26 47.97 -03 02 12.0 u H21
2013-04-26 03:30:07 C 11 26 46.15 -03 01 54.6 u H21
2013-04-26 03:38:47 C 11 26 42.53 -03 01 20.0 u H21
2013-04-26 03:43:49 C 11 26 40.43 -03 01 00.0 u H21
2013-04-29 03:27:12 C 10 51 17.49 +03 01 33.1 o G48
2013-04-29 03:27:50 C 10 51 17.07 +03 01 36.8 o G48
2013-04-29 03:28:28 C 10 51 16.68 +03 01 40.3 o G48
2013-04-29 03:29:44 C 10 51 15.90 +03 01 48.1 o G48
2013-04-29 04:43:00 C 10 50 26.62 +03 09 24.4 q H45
2013-04-29 04:44:03 C 10 50 25.93 +03 09 30.3 q H45
2013-04-29 04:44:52 C 10 50 25.42 +03 09 36.3 q H45
Radar Observations (2)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2013-05-01 00:33:00 124315.0161 0.3 Hz 2380 -1 -1
2013-05-01 00:55:00 59608109.62 4 us 2380 -1 -1
Station codes
-1 Arecibo (305-m, 1963–2020)