2021 GK4

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3027650862 ± 2.89e-04
Semi-major axis (a)0.9409590230 AU ± 4.26e-04
Inclination (i)48.01910247° ± 6.11e-02
Long. of Asc. Node (Ω)19.95920593° ± 4.36e-03
Arg. of Perihelion (ω)344.01918544° ± 3.27e-02
Mean Anomaly (M)223.66335364° ± 1.19e+00
Mean Motion (n)1.0798320402°/day ± 7.34e-04
Perihelion dist (q)0.65606948 AU ± 4.03e-04
Aphelion dist (Q)1.22584856 AU ± 6.18e-04
Orbital Period0.91275888 yr ± 6.20e-04
Physical Parameters
H (abs. magnitude)23.11
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.393″
Uncertainty4
Orbit TypeAten
MOID0.199554 AU
Observations Used36
Oppositions1
Arc Total2021-2021
First Observation Used2021-04-07
Last Observation Used2021-04-18
Observations (36)
Date Type RA Dec Mag Band Observatory
2021-04-07 06:17:53 C 13 22 29.30 +11 59 20.4 V G96
2021-04-07 06:26:05 C 13 22 25.25 +11 58 53.7 V G96
2021-04-07 06:34:20 C 13 22 21.06 +11 58 27.3 V G96
2021-04-07 06:42:34 C 13 22 16.91 +11 58 00.4 V G96
2021-04-07 09:37:39 C 13 20 48.79 +11 48 32.3 V I52
2021-04-07 09:42:51 C 13 20 46.17 +11 48 15.2 V I52
2021-04-07 09:48:03 C 13 20 43.56 +11 47 58.1 V I52
2021-04-07 20:58:15 C 13 15 13.16 +11 10 56.7 V I93
2021-04-07 21:13:34 C 13 15 05.49 +11 10 05.2 V I93
2021-04-07 22:56:32 C 13 14 12.89 +11 04 21.0 V L01
2021-04-07 22:59:32 C 13 14 11.33 +11 04 10.6 V L01
2021-04-07 23:02:31 C 13 14 09.82 +11 04 00.8 V L01
2021-04-07 23:05:21 C 13 14 08.35 +11 03 51.1 V L01
2021-04-07 23:08:21 C 13 14 06.86 +11 03 41.3 V L01
2021-04-08 03:51:03 C 13 11 47.00 +10 47 48.8 V H01
2021-04-08 03:55:31 C 13 11 44.73 +10 47 33.6 V H01
2021-04-08 04:10:52 C 13 11 36.92 +10 46 41.6 V H01
2021-04-08 04:20:41 C 13 11 31.96 +10 46 08.6 V H01
2021-04-08 19:25:52 C 13 03 55.69 +09 53 45.9 V 033
2021-04-08 19:27:52 C 13 03 54.66 +09 53 39.0 V 033
2021-04-08 19:29:52 C 13 03 53.67 +09 53 32.1 V 033
2021-04-13 02:40:56 C 12 11 34.21 +03 27 12.6 u 807
2021-04-13 02:49:32 C 12 11 29.95 +03 26 39.6 u 807
2021-04-13 02:57:52 C 12 11 25.66 +03 26 07.3 u 807
2021-04-13 04:18:06 C 12 10 46.58 +03 20 15.4 V I52
2021-04-13 04:20:31 C 12 10 45.41 +03 20 06.7 V I52
2021-04-13 04:22:56 C 12 10 44.20 +03 19 57.3 V I52
2021-04-13 04:25:21 C 12 10 42.96 +03 19 47.9 V I52
2021-04-14 06:39:30 C 11 57 50.23 +01 38 48.0 V I52
2021-04-14 06:41:55 C 11 57 49.04 +01 38 38.3 V I52
2021-04-15 07:17:52 C 11 46 07.727 +00 05 28.21 U F51
2021-04-15 07:51:56 C 11 45 51.461 +00 03 20.80 U F51
2021-04-15 08:09:01 C 11 45 43.329 +00 02 17.50 U F51
2021-04-18 03:53:31 C 11 15 40.50 -03 59 45.1 u 807
2021-04-18 04:02:02 C 11 15 36.96 -04 00 12.8 u 807
2021-04-18 04:10:18 C 11 15 33.43 -04 00 41.4 u 807