2021 LD

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6324077132 ± 3.40e-05
Semi-major axis (a)2.3071832240 AU ± 1.97e-04
Inclination (i)6.09552876° ± 2.14e-04
Long. of Asc. Node (Ω)145.12895332° ± 1.16e-03
Arg. of Perihelion (ω)183.09437842° ± 9.18e-04
Mean Anomaly (M)80.92169027° ± 5.59e-02
Mean Motion (n)0.2812478093°/day ± 3.60e-05
Perihelion dist (q)0.84810276 AU ± 1.07e-04
Aphelion dist (Q)3.76626369 AU ± 3.31e-04
Orbital Period3.50447630 yr ± 4.48e-04
Physical Parameters
H (abs. magnitude)23.00
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.225″
Uncertainty2
Orbit TypeApollo
MOID0.083408 AU
Observations Used40
Oppositions1
Arc Total2021-2021
First Observation Used2021-05-13
Last Observation Used2021-06-28
Observations (40)
Date Type RA Dec Mag Band Observatory
2021-05-13 11:41:01 C 16 10 33.722 -00 39 35.89 V F51
2021-05-13 11:58:34 C 16 10 33.133 -00 39 19.10 V F51
2021-05-13 12:16:09 C 16 10 32.516 -00 39 02.70 V F51
2021-05-13 12:33:39 C 16 10 31.951 -00 38 46.08 V F51
2021-06-01 06:50:27 C 15 47 40.995 +08 33 49.45 U F51
2021-06-01 07:06:51 C 15 47 39.619 +08 34 15.28 U F51
2021-06-01 07:23:08 C 15 47 38.240 +08 34 41.12 U F51
2021-06-01 07:39:38 C 15 47 36.841 +08 35 07.15 U F51
2021-06-01 10:39:01 C 15 47 20.44 +08 39 42.6 o 291
2021-06-01 10:48:57 C 15 47 19.61 +08 39 57.8 o 291
2021-06-01 10:58:52 C 15 47 18.78 +08 40 13.4 o 291
2021-06-01 10:59:35 C 15 47 19.648 +08 40 22.24 V F51
2021-06-01 11:00:31 C 15 47 19.573 +08 40 23.78 V F51
2021-06-02 05:10:54 C 15 45 53.34 +09 09 49.8 V 807
2021-06-02 05:18:52 C 15 45 52.64 +09 10 02.6 V 807
2021-06-02 05:26:51 C 15 45 51.94 +09 10 15.3 V 807
2021-06-02 06:33:08 C 15 45 47.35 +09 11 29.7 V V06
2021-06-02 06:38:25 C 15 45 46.86 +09 11 38.6 V V06
2021-06-02 06:43:41 C 15 45 46.38 +09 11 46.8 V V06
2021-06-02 06:48:57 C 15 45 45.92 +09 11 55.4 V V06
2021-06-08 07:08:40 C 15 32 22.26 +13 28 31.5 V I52
2021-06-08 07:23:03 C 15 32 20.94 +13 28 51.1 V I52
2021-06-08 07:29:47 C 15 32 19.81 +13 29 12.8 V I52
2021-06-12 07:37:46 C 15 21 03.15 +16 51 37.4 V I52
2021-06-12 07:40:20 C 15 21 02.82 +16 51 42.8 V I52
2021-06-12 07:42:54 C 15 21 02.40 +16 51 48.7 V I52
2021-06-12 07:45:28 C 15 21 02.06 +16 51 54.3 V I52
2021-06-13 05:48:27 C 15 18 07.67 +17 42 48.1 o 691
2021-06-13 06:05:37 C 15 18 05.16 +17 43 28.4 o 691
2021-06-13 06:22:48 C 15 18 02.61 +17 44 08.2 o 691
2021-06-18 06:55:42 C 14 58 58.37 +22 59 14.3 o 691
2021-06-18 07:13:41 C 14 58 54.90 +23 00 05.2 o 691
2021-06-24 05:24:09 C 14 25 54.48 +30 57 00.6 V 695
2021-06-24 05:30:45 C 14 25 52.41 +30 57 25.6 V 695
2021-06-24 05:37:21 C 14 25 50.34 +30 57 50.9 V 695
2021-06-27 05:11:35 C 14 01 26.06 +35 50 57.2 V 291
2021-06-27 05:22:31 C 14 01 21.58 +35 51 43.2 V 291
2021-06-27 05:33:29 C 14 01 17.06 +35 52 29.6 V 291
2021-06-28 05:53:47 C 13 51 07.35 +37 39 48.9 V 291
2021-06-28 06:08:37 C 13 51 00.59 +37 40 53.6 V 291