2019 GJ4

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.1678650071 ± 5.36e-07
Semi-major axis (a)0.9861517339 AU ± 1.95e-07
Inclination (i)6.97839903° ± 1.78e-05
Long. of Asc. Node (Ω)196.09336640° ± 7.95e-06
Arg. of Perihelion (ω)252.55103080° ± 7.72e-05
Mean Anomaly (M)2.24437850° ± 8.48e-04
Mean Motion (n)1.0064603311°/day ± 2.98e-07
Perihelion dist (q)0.82061137 AU ± 5.53e-07
Aphelion dist (Q)1.15169210 AU ± 5.76e-07
Orbital Period0.97929968 yr ± 2.90e-07
Physical Parameters
H (abs. magnitude)26.02
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.245″
Uncertainty0
Orbit TypeAten
MOID0.005177 AU
Observations Used51
Radar Obs Used2
Oppositions1
Arc Total2019-2019
First Observation Used2019-04-07
Last Observation Used2019-05-09
Observations (58)
Date Type RA Dec Mag Band Observatory
2019-04-07 05:30:09 C 10 49 50.70 +07 04 53.5 U I41
2019-04-07 05:30:39 C 10 49 51.31 +07 05 03.9 U I41
2019-04-07 05:33:05 C 10 49 54.97 +07 05 50.3 U I41
2019-04-07 05:33:35 C 10 49 55.75 +07 06 02.1 U I41
2019-04-08 06:34:37 C 11 22 15.85 +13 54 48.7 V 703
2019-04-08 06:49:35 C 11 22 28.93 +13 57 52.2 V 703
2019-04-08 06:57:04 C 11 22 35.30 +13 59 23.1 V 703
2019-04-08 08:02:33 C 11 23 35.92 +14 11 03.9 17.8 r 718
2019-04-08 08:03:59 C 11 23 37.09 +14 11 21.1 17.6 r 718
2019-04-08 08:06:36 C 11 23 39.48 +14 11 52.0 17.3 r 718
2019-04-08 08:07:54 C 11 23 40.65 +14 12 07.0 17.2 r 718
2019-04-08 08:09:13 C 11 23 41.80 +14 12 23.1 17.4 r 718
2019-04-08 08:20:25 C 11 23 47.27 +14 15 34.2 V H01
2019-04-08 08:26:08 C 11 23 52.38 +14 16 40.8 V H01
2019-04-08 08:42:04 C 11 24 06.64 +14 19 44.8 V H01
2019-04-08 09:00:26 C 11 24 23.20 +14 23 15.5 V H01
2019-04-08 09:19:13 C 11 24 41.01 +14 27 11.4 V I52
2019-04-08 09:20:01 C 11 24 41.72 +14 27 20.5 V I52
2019-04-08 09:20:49 C 11 24 42.45 +14 27 29.4 V I52
2019-04-08 09:21:37 C 11 24 43.16 +14 27 38.5 V I52
2019-04-08 09:51:19 C 11 25 31.15 +14 36 42.0 V T08
2019-04-08 09:57:44 C 11 25 36.32 +14 37 54.2 V T08
2019-04-08 10:18:12 C 11 25 52.90 +14 41 46.6 V T08
2019-04-08 10:29:04 C 11 26 01.79 +14 43 50.8 V T08
2019-04-08 19:17:38 C 11 34 39.91 +16 12 47.4 q C77
2019-04-08 19:21:38 C 11 34 42.85 +16 13 27.6 q C77
2019-04-08 19:25:48 C 11 34 46.01 +16 14 08.9 q C77
2019-04-08 19:30:02 C 11 34 49.13 +16 14 51.7 q C77
2019-04-08 20:47:43 C 11 36 00.40 +16 29 39.5 V J04
2019-04-08 20:47:58 C 11 36 00.59 +16 29 42.0 V J04
2019-04-08 20:48:13 C 11 36 00.79 +16 29 44.6 V J04
2019-04-08 21:09:06 C 11 35 56.41 +16 30 02.0 S C43
2019-04-08 21:12:03 C 11 35 58.51 +16 30 29.8 S C43
2019-04-08 21:14:59 C 11 36 00.61 +16 30 57.2 S C43
2019-04-08 21:17:56 C 11 36 02.73 +16 31 25.1 S C43
2019-04-08 21:20:52 C 11 36 04.82 +16 31 52.9 S C43
2019-04-08 21:29:35 C 11 36 18.36 +16 34 11.0 q I93
2019-04-08 21:33:47 C 11 36 21.29 +16 34 51.2 q I93
2019-04-08 21:38:00 C 11 36 24.22 +16 35 30.8 q I93
2019-04-10 21:37:30 C 12 05 03.84 +21 42 01.5 V K87
2019-04-10 21:38:50 C 12 05 04.32 +21 42 07.4 V K87
2019-04-10 21:39:54 C 12 05 04.68 +21 42 12.0 V K87
2019-04-13 09:07:48 C 12 24 11.61 +24 41 10.3 V I52
2019-04-13 09:08:23 C 12 24 11.74 +24 41 11.4 V I52
2019-04-13 09:12:53 C 12 24 12.55 +24 41 18.6 V I52
2019-04-13 09:17:21 C 12 24 13.35 +24 41 26.8 V I52
2019-04-14 03:30:29 C 12 28 44.30 +25 14 59.5 V G96
2019-04-14 03:40:07 C 12 28 45.79 +25 15 18.1 V G96
2019-04-14 03:47:38 C 12 28 46.87 +25 15 33.0 V G96
2019-04-14 03:55:06 C 12 28 48.01 +25 15 47.4 V G96
Radar Observations (2)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2019-04-09 03:33:00 -85212.6893 3 Hz 2380 -1 -1
2019-04-09 04:05:00 15712026.99 4 us 2380 -1 -1
Station codes
-1 Arecibo (305-m, 1963–2020)