2021 HR

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3350592501 ± 4.93e-05
Semi-major axis (a)1.6053148056 AU ± 1.32e-04
Inclination (i)3.84199387° ± 4.91e-04
Long. of Asc. Node (Ω)33.88875307° ± 4.72e-04
Arg. of Perihelion (ω)164.58896180° ± 3.83e-04
Mean Anomaly (M)98.57127103° ± 1.06e-01
Mean Motion (n)0.4845872235°/day ± 5.99e-05
Perihelion dist (q)1.06743923 AU ± 1.18e-04
Aphelion dist (Q)2.14319038 AU ± 1.94e-04
Orbital Period2.03395021 yr ± 2.51e-04
Physical Parameters
H (abs. magnitude)25.80
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.209″
Uncertainty3
Orbit TypeAmor
MOID0.066513 AU
Observations Used28
Oppositions1
Arc Total2021-2021
First Observation Used2021-04-02
Last Observation Used2021-05-11
Observations (28)
Date Type RA Dec Mag Band Observatory
2021-04-02 08:27:37 C 13 56 41.054 +09 25 11.30 V F51
2021-04-02 08:57:40 C 13 56 46.657 +09 23 36.00 V F51
2021-04-02 09:12:43 C 13 56 49.438 +09 22 47.97 V F51
2021-04-07 11:30:39 C 14 22 38.901 +02 17 21.65 V F51
2021-04-07 12:28:33 C 14 22 49.209 +02 13 48.54 V F51
2021-04-16 11:56:03 C 15 06 34.036 -11 09 41.79 U F51
2021-04-16 12:13:59 C 15 06 36.857 -11 10 46.24 U F51
2021-04-16 12:31:53 C 15 06 39.624 -11 11 49.55 U F51
2021-04-16 12:49:51 C 15 06 42.444 -11 12 53.96 U F51
2021-04-16 15:54:53 C 15 07 16.60 -11 21 43.8 V 474
2021-04-16 16:00:01 C 15 07 17.39 -11 22 02.0 V 474
2021-04-16 16:05:08 C 15 07 18.29 -11 22 20.1 V 474
2021-04-17 08:12:10 C 15 10 23.66 -12 21 52.7 o 691
2021-04-17 08:34:10 C 15 10 27.09 -12 23 10.2 o 691
2021-04-17 08:56:15 C 15 10 30.52 -12 24 28.0 o 691
2021-04-17 09:28:31 C 15 10 35.40 -12 26 21.6 V I52
2021-04-17 09:34:03 C 15 10 36.25 -12 26 41.8 V I52
2021-04-17 09:39:34 C 15 10 37.10 -12 27 00.3 V I52
2021-04-18 10:48:47 C 15 15 17.458 -13 53 45.88 U F51
2021-04-18 11:11:01 C 15 15 20.759 -13 55 02.41 U F51
2021-04-18 11:33:19 C 15 15 24.047 -13 56 18.66 U F51
2021-04-19 14:56:46 C 15 20 15.15 -15 26 13.0 V 474
2021-04-19 14:59:20 C 15 20 15.51 -15 26 20.5 V 474
2021-04-19 15:01:54 C 15 20 15.91 -15 26 29.1 V 474
2021-04-19 15:04:27 C 15 20 16.31 -15 26 37.5 V 474
2021-05-11 08:18:39 C 16 21 32.70 -33 50 00.4 V 807
2021-05-11 08:26:38 C 16 21 33.05 -33 50 07.6 V 807
2021-05-11 08:34:37 C 16 21 33.42 -33 50 15.6 V 807