2021 DX

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.1842135725 ± 6.34e-06
Semi-major axis (a)1.2427462114 AU ± 1.00e-05
Inclination (i)8.46677511° ± 2.52e-04
Long. of Asc. Node (Ω)174.42098484° ± 1.80e-04
Arg. of Perihelion (ω)56.25312613° ± 9.70e-05
Mean Anomaly (M)92.98460212° ± 1.42e-02
Mean Motion (n)0.7114405326°/day ± 8.59e-06
Perihelion dist (q)1.01381549 AU ± 1.13e-05
Aphelion dist (Q)1.47167693 AU ± 1.42e-05
Orbital Period1.38539518 yr ± 1.67e-05
Physical Parameters
H (abs. magnitude)24.51
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.221″
Uncertainty2
Orbit TypeApollo
MOID0.067666 AU
Observations Used42
Oppositions1
Arc Total2021-2021
First Observation Used2021-02-17
Last Observation Used2021-06-27
Observations (42)
Date Type RA Dec Mag Band Observatory
2021-02-17 08:30:39 C 08 58 52.272 -07 03 47.56 U F51
2021-02-17 08:48:14 C 08 58 50.891 -07 03 26.22 U F51
2021-02-17 09:05:46 C 08 58 49.544 -07 03 05.33 U F51
2021-02-17 09:23:18 C 08 58 48.180 -07 02 43.84 U F51
2021-02-18 02:35:48 C 08 57 41.18 -06 40 52.6 V 807
2021-02-18 02:44:12 C 08 57 40.55 -06 40 42.0 V 807
2021-02-18 02:52:35 C 08 57 39.91 -06 40 31.5 V 807
2021-02-18 10:37:04 C 08 57 09.48 -06 30 33.3 V 474
2021-02-18 10:46:55 C 08 57 08.75 -06 30 20.9 V 474
2021-02-18 10:57:19 C 08 57 07.95 -06 30 07.7 V 474
2021-02-19 02:12:16 C 08 56 08.61 -06 10 27.6 V 807
2021-02-19 02:19:00 C 08 56 08.09 -06 10 18.8 V 807
2021-02-19 02:24:53 C 08 56 07.66 -06 10 11.0 V 807
2021-02-19 05:25:14 C 08 55 55.61 -06 06 57.8 V V06
2021-02-19 05:38:56 C 08 55 54.57 -06 06 40.0 V V06
2021-02-19 05:45:46 C 08 55 54.09 -06 06 30.9 V V06
2021-02-21 02:45:04 C 08 52 58.36 -05 03 19.5 V 807
2021-02-21 02:50:40 C 08 52 57.92 -05 03 11.5 V 807
2021-02-21 02:56:16 C 08 52 57.51 -05 03 04.0 V 807
2021-02-22 03:28:59 C 08 51 22.17 -04 26 47.2 V 807
2021-02-22 03:35:09 C 08 51 21.70 -04 26 37.8 V 807
2021-02-22 03:41:35 C 08 51 21.20 -04 26 27.7 V 807
2021-03-03 02:53:40 C 08 38 39.56 +01 52 33.4 u H21
2021-03-03 03:04:25 C 08 38 38.88 +01 52 54.9 u H21
2021-03-03 03:13:23 C 08 38 38.31 +01 53 12.8 u H21
2021-03-03 03:45:46 C 08 38 35.38 +01 55 15.6 V 807
2021-03-03 03:51:06 C 08 38 35.02 +01 55 26.3 V 807
2021-03-03 03:56:26 C 08 38 34.65 +01 55 36.8 V 807
2021-03-03 07:59:18 C 08 38 21.30 +02 02 51.5 V 291
2021-03-03 08:20:12 C 08 38 20.01 +02 03 33.1 V 291
2021-03-03 08:41:09 C 08 38 18.74 +02 04 15.3 V 291
2021-03-06 02:42:53 C 08 35 09.26 +04 20 56.3 u H21
2021-03-06 02:51:56 C 08 35 08.73 +04 21 15.4 u H21
2021-03-06 03:00:42 C 08 35 08.23 +04 21 34.1 u H21
2021-03-07 03:27:42 C 08 34 02.32 +05 15 05.8 u 807
2021-03-07 03:32:44 C 08 34 02.03 +05 15 16.9 u 807
2021-03-07 03:38:19 C 08 34 01.73 +05 15 28.8 u 807
2021-03-07 03:42:07 C 08 34 02.41 +05 14 37.1 u H21
2021-03-07 03:51:28 C 08 34 01.90 +05 14 57.2 u H21
2021-03-07 03:56:26 C 08 34 01.63 +05 15 08.1 u H21
2021-06-27 06:22:47 C 16 06 58.86 +51 23 35.6 V 695
2021-06-27 06:59:48 C 16 07 05.37 +51 22 28.0 V 695