2021 HY1

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.1575781473 ± 2.03e-04
Semi-major axis (a)1.2963071362 AU ± 4.59e-04
Inclination (i)21.81637701° ± 1.57e-02
Long. of Asc. Node (Ω)35.57117035° ± 3.85e-03
Arg. of Perihelion (ω)120.66624155° ± 4.12e-02
Mean Anomaly (M)75.73946836° ± 6.43e-01
Mean Motion (n)0.6678061410°/day ± 3.54e-04
Perihelion dist (q)1.09203746 AU ± 4.67e-04
Aphelion dist (Q)1.50057681 AU ± 5.92e-04
Orbital Period1.47591677 yr ± 7.83e-04
Physical Parameters
H (abs. magnitude)23.90
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.248″
Uncertainty3
Orbit TypeAmor
MOID0.156114 AU
Observations Used21
Oppositions1
Arc Total2021-2021
First Observation Used2021-04-18
Last Observation Used2021-05-06
Observations (21)
Date Type RA Dec Mag Band Observatory
2021-04-18 07:19:28 C 12 59 21.95 +25 54 06.3 V G96
2021-04-18 07:26:27 C 12 59 20.55 +25 53 30.6 V G96
2021-04-18 07:33:28 C 12 59 19.07 +25 52 54.6 V G96
2021-04-18 07:40:27 C 12 59 17.60 +25 52 18.8 V G96
2021-04-18 09:24:32 C 12 58 56.02 +25 43 24.7 V I52
2021-04-18 09:44:26 C 12 58 52.00 +25 41 41.7 V I52
2021-04-18 10:04:20 C 12 58 47.91 +25 39 59.5 V I52
2021-04-19 02:57:49 C 12 55 36.66 +24 14 22.9 V 807
2021-04-19 03:03:47 C 12 55 35.46 +24 13 52.4 V 807
2021-04-19 03:09:44 C 12 55 34.26 +24 13 21.8 V 807
2021-04-20 02:58:56 C 12 51 11.11 +22 09 14.4 V H01
2021-04-20 03:04:28 C 12 51 10.06 +22 08 46.2 V H01
2021-04-20 03:19:44 C 12 51 07.16 +22 07 27.7 V H01
2021-04-20 04:25:56 C 12 50 54.63 +22 01 47.3 V V06
2021-04-20 04:32:11 C 12 50 53.38 +22 01 14.6 V V06
2021-04-20 04:38:25 C 12 50 52.23 +22 00 43.3 V V06
2021-04-20 04:44:40 C 12 50 51.00 +22 00 10.4 V V06
2021-05-06 05:48:41 C 12 04 01.61 -07 46 28.1 V V06
2021-05-06 06:00:12 C 12 04 00.72 -07 47 09.4 V V06
2021-05-06 06:11:42 C 12 03 59.82 -07 47 50.7 V V06
2021-05-06 06:23:13 C 12 03 58.94 -07 48 32.0 V V06