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
2013-04-29 04:45:39 C 10 50 24.93 +03 09 41.5 q H45
2013-04-29 04:46:51 C 10 50 24.13 +03 09 48.1 q H45
2013-04-29 04:47:42 C 10 50 23.61 +03 09 53.8 q H45
2013-04-29 04:48:52 C 10 50 22.80 +03 10 01.7 q H45
2013-04-29 04:49:57 C 10 50 22.12 +03 10 08.3 q H45
2013-04-29 04:51:15 C 10 50 21.33 +03 10 16.1 q H45
2013-04-29 04:52:39 C 10 50 22.70 +03 10 16.0 17.9 r 718
2013-04-29 04:54:12 C 10 50 19.36 +03 10 34.9 q H45
2013-04-29 04:55:46 C 10 50 20.65 +03 10 36.2 17.7 r 718
2013-04-29 04:58:54 C 10 50 18.63 +03 10 55.5 17.8 r 718
2013-04-30 03:46:03 C 10 35 03.62 +05 46 41.4 o 291
2013-04-30 03:46:50 C 10 35 03.01 +05 46 47.2 o 291
2013-04-30 03:47:38 C 10 35 02.41 +05 46 52.9 o 291
2013-04-30 06:40:46 C 10 32 51.25 +06 07 48.4 17.9 r 718
2013-04-30 06:43:56 C 10 32 48.89 +06 08 11.8 18.2 r 718
2013-04-30 06:47:03 C 10 32 46.48 +06 08 35.2 17.9 r 718
2013-05-01 00:29:20 C 10 18 57.63 +08 27 24.9 q I15
2013-05-01 00:32:48 C 10 18 54.70 +08 27 53.2 q I15
2013-05-01 00:36:16 C 10 18 51.73 +08 28 21.0 q I15
2013-05-01 04:06:49 C 10 15 52.12 +08 57 36.5 17.7 r 718
2013-05-01 04:09:57 C 10 15 49.36 +08 58 02.6 17.9 r 718
2013-05-01 04:13:04 C 10 15 46.52 +08 58 29.3 17.9 r 718
2013-05-01 04:54:14 C 10 15 09.28 +09 04 33.0 u 703
2013-05-01 05:05:59 C 10 14 58.81 +09 06 11.5 u 703
2013-05-01 05:17:46 C 10 14 48.22 +09 07 50.5 u 703
2013-05-01 05:29:31 C 10 14 37.78 +09 09 28.8 u 703
2013-05-02 03:37:41 C 09 54 02.02 +12 27 08.2 17.5 r 718
2013-05-02 03:39:01 C 09 54 00.59 +12 27 21.8 17.6 r 718
2013-05-02 03:40:20 C 09 53 59.27 +12 27 33.6 18.0 r 718
2013-05-02 04:05:28 C 09 53 34.39 +12 31 37.2 t G58
2013-05-02 04:07:19 C 09 53 32.45 +12 31 54.6 t G58
2013-05-02 04:09:09 C 09 53 30.55 +12 32 11.8 t G58
2013-05-02 04:10:59 C 09 53 28.64 +12 32 28.9 t G58
2013-05-02 22:02:24 C 09 34 15.66 +15 25 50.0 q C77
2013-05-02 22:09:40 C 09 34 07.38 +15 27 05.6 q C77
2013-05-02 22:13:08 C 09 34 03.18 +15 27 34.8 q C77
2013-05-03 03:39:17 C 09 27 49.80 +16 22 45.8 17.8 r 718
2013-05-03 03:40:37 C 09 27 48.30 +16 22 59.0 18.2 r 718
2013-05-03 03:41:55 C 09 27 46.60 +16 23 11.8 18.1 r 718
2013-05-03 03:43:14 C 09 27 45.13 +16 23 25.5 18.1 r 718
2013-05-04 20:33:38 C 08 33 33.36 +23 21 44.5 t 204
2013-05-04 20:39:20 C 08 33 24.87 +23 22 40.2 t 204
2013-05-04 20:45:01 C 08 33 16.42 +23 23 36.3 t 204
2013-10-12 11:00:07 C 04 35 42.38 +21 36 37.1 o 695
2013-10-12 11:03:35 C 04 35 42.18 +21 36 36.1 o 695
2013-10-12 11:07:03 C 04 35 41.96 +21 36 34.9 o 695
2013-10-12 11:10:50 C 04 35 41.75 +21 36 34.0 o 695
2013-10-12 11:14:17 C 04 35 41.54 +21 36 32.8 o 695
2013-10-12 11:17:45 C 04 35 41.34 +21 36 32.0 o 695
2013-10-13 10:02:42 C 04 34 23.74 +21 29 43.8 o 695
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)