2021 HQ1

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.1508250600 ± 1.04e-04
Semi-major axis (a)1.2348902187 AU ± 1.78e-04
Inclination (i)7.97786406° ± 4.26e-03
Long. of Asc. Node (Ω)33.63643362° ± 3.07e-04
Arg. of Perihelion (ω)190.68987198° ± 2.16e-03
Mean Anomaly (M)112.54082113° ± 2.60e-01
Mean Motion (n)0.7182402680°/day ± 1.55e-04
Perihelion dist (q)1.04863783 AU ± 1.98e-04
Aphelion dist (Q)1.42114261 AU ± 2.42e-04
Orbital Period1.37227934 yr ± 2.96e-04
Physical Parameters
H (abs. magnitude)26.35
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.275″
Uncertainty3
Orbit TypeAmor
MOID0.043545 AU
Observations Used23
Oppositions1
Arc Total2021-2021
First Observation Used2021-04-17
Last Observation Used2021-05-05
Observations (24)
Date Type RA Dec Mag Band Observatory
2021-04-17 07:24:38 C 13 10 35.274 +13 41 40.89 U F51
2021-04-17 07:42:36 C 13 10 33.128 +13 40 09.22 U F51
2021-04-17 08:00:35 C 13 10 30.972 +13 38 38.03 U F51
2021-04-18 06:04:09 C 13 08 43.367 +11 40 29.27 V 568
2021-04-18 06:05:34 C 13 08 43.195 +11 40 21.88 V 568
2021-04-18 06:06:59 C 13 08 43.050 +11 40 14.08 V 568
2021-04-18 12:08:34 C 13 07 57.905 +11 06 50.97 V F51
2021-04-18 12:09:45 C 13 07 57.760 +11 06 44.37 V F51
2021-04-18 12:25:10 C 13 07 55.901 +11 05 17.10 V F51
2021-04-18 12:42:55 C 13 07 53.749 +11 03 35.20 V F51
2021-04-18 12:58:21 C 13 07 51.966 +11 02 07.92 V F51
2021-04-19 10:44:23 C 13 06 03.782 +08 56 42.67 U F51
2021-04-19 11:01:19 C 13 06 01.586 +08 55 02.09 U F51
2021-04-19 11:34:59 C 13 05 57.226 +08 51 40.77 U F51
2021-04-20 23:57:31 C 13 02 45.55 +05 04 56.4 V 033
2021-04-20 23:59:55 C 13 02 45.25 +05 04 40.3 V 033
2021-04-21 00:02:19 C 13 02 44.93 +05 04 25.2 V 033
2021-04-21 06:34:01 C 13 02 12.50 +04 22 42.1 V I52
2021-04-21 06:35:50 C 13 02 12.23 +04 22 30.7 V I52
2021-04-21 06:37:39 C 13 02 12.00 +04 22 18.7 V I52
2021-04-21 06:46:04 C 13 02 10.85 +04 21 23.3 V I52
2021-05-05 08:26:13 C 12 29 06.81 -37 49 14.0 V 474
2021-05-05 08:29:19 C 12 29 06.34 -37 49 35.1 V 474
2021-05-05 08:35:42 C 12 29 05.57 -37 50 19.3 V 474