2021 LA4

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5114343321 ± 7.78e-08
Semi-major axis (a)2.5872195096 AU ± 5.72e-08
Inclination (i)25.84729940° ± 1.24e-05
Long. of Asc. Node (Ω)240.63441365° ± 1.05e-05
Arg. of Perihelion (ω)86.24030288° ± 2.60e-05
Mean Anomaly (M)1.59297909° ± 2.27e-05
Mean Motion (n)0.2368439852°/day ± 7.85e-09
Perihelion dist (q)1.26402663 AU ± 2.03e-07
Aphelion dist (Q)3.91041239 AU ± 2.19e-07
Orbital Period4.16150017 yr ± 1.38e-07
Physical Parameters
H (abs. magnitude)20.93
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.203″
Uncertainty0
Orbit TypeAmor
MOID0.517348 AU
Observations Used62
Oppositions6
Arc Total2013-2021
First Observation Used2013-11-27
Last Observation Used2021-07-09
Observations (62)
Date Type RA Dec Mag Band Observatory
2013-11-27 08:37:13 C 04 59 46.342 +14 28 07.92 V F51
2013-11-27 08:59:10 C 04 59 44.982 +14 27 54.18 V F51
2013-11-27 09:43:09 C 04 59 42.312 +14 27 27.14 V F51
2017-06-02 13:14:59 C 21 42 00.465 +20 03 53.17 V F51
2017-06-02 13:49:34 C 21 42 04.291 +20 05 03.89 V F51
2017-06-02 14:07:05 C 21 42 06.175 +20 05 39.34 V F51
2017-08-26 13:14:53 C 02 09 22.333 +60 06 48.34 V F51
2017-08-26 14:22:24 C 02 09 28.866 +60 06 51.25 V F51
2017-08-27 09:44:35 C 02 11 27.241 +60 07 13.45 V F51
2017-08-27 10:22:57 C 02 11 30.946 +60 07 15.30 V F51
2017-08-27 10:59:49 C 02 11 34.485 +60 07 17.10 V F51
2017-08-27 12:43:08 C 02 11 44.222 +60 07 20.72 V F51
2017-08-27 13:43:46 C 02 11 49.862 +60 07 21.93 V F51
2017-08-27 14:21:01 C 02 11 53.273 +60 07 22.66 V F51
2017-10-28 08:33:35 C 02 22 28.747 +40 00 42.88 V F51
2017-10-28 08:51:04 C 02 22 28.037 +40 00 14.70 V F51
2017-10-29 06:39:44 C 02 21 39.265 +39 24 31.93 V G96
2017-10-29 06:56:13 C 02 21 38.603 +39 24 04.50 V G96
2017-11-10 07:54:41 C 02 13 00.810 +31 31 13.52 V F51
2017-11-10 08:09:35 C 02 13 00.442 +31 30 49.91 V F51
2017-11-10 08:24:31 C 02 13 00.057 +31 30 26.23 V F51
2017-11-10 08:39:36 C 02 12 59.665 +31 30 02.66 V F51
2017-11-18 06:58:32 C 02 09 52.169 +26 42 54.19 L F51
2017-11-18 07:16:22 C 02 09 51.924 +26 42 28.85 L F51
2017-11-18 07:34:14 C 02 09 51.687 +26 42 03.79 L F51
2017-11-22 10:24:44 C 02 09 06.078 +24 27 20.67 V F51
2017-11-22 10:44:46 C 02 09 05.926 +24 26 54.31 V F51
2017-11-22 11:04:56 C 02 09 05.794 +24 26 27.71 V F51
2021-06-02 10:10:50 C 16 42 39.770 -09 21 07.66 U F51
2021-06-02 10:28:07 C 16 42 38.891 -09 20 40.63 U F51
2021-06-02 11:02:40 C 16 42 37.128 -09 19 46.79 U F51
2021-06-05 09:40:47 C 16 39 13.037 -07 28 04.87 V F51
2021-06-05 09:56:51 C 16 39 12.206 -07 27 39.23 V F51
2021-06-09 08:21:20 C 16 34 32.68 -04 55 35.4 V G96
2021-06-09 08:28:51 C 16 34 32.30 -04 55 23.0 V G96
2021-06-10 10:49:39 C 16 33 14.256 -04 12 37.70 U F51
2021-06-10 11:07:01 C 16 33 13.349 -04 12 09.84 U F51
2021-06-10 11:24:17 C 16 33 12.436 -04 11 41.56 U F51
2021-06-12 06:30:52 C 16 31 05.61 -03 01 53.4 V V06
2021-06-12 06:33:32 C 16 31 05.51 -03 01 49.2 V V06
2021-06-13 07:47:05 C 16 29 51.49 -02 21 04.6 V V06
2021-06-13 07:50:30 C 16 29 51.28 -02 20 58.0 V V06
2021-06-13 07:53:56 C 16 29 51.10 -02 20 51.9 V V06
2021-06-13 07:57:21 C 16 29 50.91 -02 20 46.8 V V06
2021-06-16 08:26:47 C 16 26 23.18 -00 24 38.1 V V06
2021-06-16 08:31:21 C 16 26 22.94 -00 24 31.1 V V06
2021-06-16 08:35:54 C 16 26 22.71 -00 24 23.9 V V06
2021-06-16 08:40:27 C 16 26 22.49 -00 24 16.7 V V06
2021-06-19 08:08:07 C 16 23 07.04 +01 27 54.6 o 691
2021-06-19 08:31:45 C 16 23 05.96 +01 28 31.1 o 691