2021 DH

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5801397039 ± 1.26e-03
Semi-major axis (a)2.7095664634 AU ± 8.66e-03
Inclination (i)7.28480363° ± 1.24e-02
Long. of Asc. Node (Ω)2.94635563° ± 1.59e-02
Arg. of Perihelion (ω)119.39893517° ± 1.73e-02
Mean Anomaly (M)29.06965397° ± 1.87e+00
Mean Motion (n)0.2209848819°/day ± 1.06e-03
Perihelion dist (q)1.13763938 AU ± 4.99e-03
Aphelion dist (Q)4.28149355 AU ± 1.41e-02
Orbital Period4.46015254 yr ± 2.14e-02
Physical Parameters
H (abs. magnitude)23.67
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.267″
Uncertainty4
Orbit TypeAmor
MOID0.189504 AU
Observations Used20
Oppositions1
Arc Total2021-2021
First Observation Used2021-02-06
Last Observation Used2021-03-04
Observations (20)
Date Type RA Dec Mag Band Observatory
2021-02-06 09:47:01 C 08 21 25.478 +53 41 09.55 V F52
2021-02-06 10:05:28 C 08 21 28.941 +53 40 30.78 V F52
2021-02-10 09:16:31 C 08 40 07.929 +50 10 54.23 V F52
2021-02-10 09:35:05 C 08 40 11.034 +50 10 11.49 V F52
2021-02-16 08:14:45 C 09 03 28.545 +44 22 29.60 U F51
2021-02-16 08:33:39 C 09 03 31.004 +44 21 42.96 U F51
2021-02-16 08:52:31 C 09 03 33.452 +44 20 55.86 U F51
2021-02-16 11:07:17 C 09 03 50.876 +44 15 15.35 V 568
2021-02-16 11:09:16 C 09 03 51.131 +44 15 10.33 V 568
2021-02-16 11:13:57 C 09 03 51.723 +44 14 58.06 V 568
2021-02-17 06:48:52 C 09 06 40.44 +43 25 21.1 V V06
2021-02-17 06:53:59 C 09 06 41.06 +43 25 07.7 V V06
2021-02-17 06:59:06 C 09 06 41.75 +43 24 54.7 V V06
2021-02-17 07:04:13 C 09 06 42.35 +43 24 41.7 V V06
2021-03-03 04:12:18 C 09 43 26.54 +29 43 54.7 u H21
2021-03-03 04:22:05 C 09 43 27.24 +29 43 32.6 u H21
2021-03-03 04:27:16 C 09 43 27.69 +29 43 21.2 u H21
2021-03-04 04:14:23 C 09 45 29.55 +28 49 45.4 u H21
2021-03-04 04:25:11 C 09 45 30.37 +28 49 21.7 u H21
2021-03-04 04:36:17 C 09 45 31.21 +28 48 56.9 u H21