2021 GR16

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6279510167 ± 5.19e-05
Semi-major axis (a)3.3839646519 AU ± 3.73e-04
Inclination (i)16.99694118° ± 4.31e-04
Long. of Asc. Node (Ω)159.75962302° ± 1.53e-03
Arg. of Perihelion (ω)323.18613510° ± 1.83e-03
Mean Anomaly (M)291.37116540° ± 4.88e-02
Mean Motion (n)0.1583337688°/day ± 2.62e-05
Perihelion dist (q)1.25900061 AU ± 2.24e-04
Aphelion dist (Q)5.50892870 AU ± 6.32e-04
Orbital Period6.22499098 yr ± 1.03e-03
Physical Parameters
H (abs. magnitude)19.07
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.303″
Uncertainty2
Orbit TypeAmor
MOID0.313943 AU
Observations Used24
Oppositions1
Arc Total2021-2021
First Observation Used2021-04-14
Last Observation Used2021-06-01
Observations (24)
Date Type RA Dec Mag Band Observatory
2021-04-14 13:17:37 C 15 24 23.896 +07 28 02.39 U F51
2021-04-14 13:34:46 C 15 24 23.193 +07 28 10.26 U F51
2021-04-14 14:02:37 C 15 24 22.068 +07 28 22.95 U F51
2021-04-14 14:19:40 C 15 24 21.357 +07 28 30.41 U F51
2021-04-15 06:34:13 C 15 23 43.52 +07 35 47.1 u H21
2021-04-15 06:54:14 C 15 23 42.71 +07 35 56.5 u H21
2021-04-15 08:39:42 C 15 23 38.56 +07 36 44.1 V V06
2021-04-15 08:49:58 C 15 23 38.12 +07 36 48.8 V V06
2021-04-15 09:10:30 C 15 23 37.26 +07 36 58.2 V V06
2021-04-17 08:21:15 C 15 21 43.67 +07 57 25.8 o 691
2021-04-17 08:43:17 C 15 21 42.76 +07 57 34.5 o 691
2021-04-17 09:05:21 C 15 21 41.79 +07 57 44.9 o 691
2021-05-02 08:00:31 C 15 06 10.96 +09 52 33.5 V I52
2021-05-02 08:25:00 C 15 06 09.87 +09 52 37.5 V I52
2021-05-03 08:14:57 C 15 05 07.75 +09 57 31.7 V I52
2021-05-03 08:33:00 C 15 05 06.93 +09 57 34.7 V I52
2021-05-03 08:44:42 C 15 05 06.41 +09 57 37.2 V I52
2021-05-03 08:53:10 C 15 05 06.07 +09 57 39.5 V I52
2021-05-06 05:49:23 C 15 02 09.12 +10 09 43.1 u H21
2021-05-06 05:59:21 C 15 02 08.74 +10 09 44.8 u H21
2021-05-06 06:08:06 C 15 02 08.40 +10 09 46.2 u H21
2021-06-01 07:37:47 C 14 41 40.43 +09 56 31.3 o 695
2021-06-01 07:56:15 C 14 41 40.03 +09 56 28.0 o 695
2021-06-01 08:14:43 C 14 41 39.64 +09 56 24.9 o 695