2021 NL4

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3900291000
Semi-major axis (a)1.3284343000 AU
Inclination (i)4.04524000°
Long. of Asc. Node (Ω)330.98768000°
Arg. of Perihelion (ω)51.05252000°
Mean Anomaly (M)256.94474000°
Mean Motion (n)0.6437154900°/day
Perihelion dist (q)0.81030630 AU
Aphelion dist (Q)1.84656230 AU
Orbital Period1.53112310 yr
Physical Parameters
H (abs. magnitude)23.56
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date
RMS Residual0.580″
Uncertainty7
Orbit TypeApollo
MOID0.027335 AU
Observations Used40
Oppositions1
Arc Total
First Observation Used
Last Observation Used2021-07-30
Observations (41)
Date Type RA Dec Mag Band Observatory
2021-07-10 04:35:41 C 19 46 33.48 -43 14 05.1 q X74
2021-07-10 04:57:55 C 19 46 31.75 -43 14 35.8 q X74
2021-07-10 05:20:21 C 19 46 30.03 -43 15 07.0 q X74
2021-07-11 02:19:33 C 19 45 19.18 -43 45 24.6 q X74
2021-07-11 02:30:17 C 19 45 18.49 -43 45 41.7 q X74
2021-07-11 02:41:39 C 19 45 17.64 -43 45 59.1 q X74
2021-07-11 10:01:36 C 19 44 49.156 -43 57 32.19 U F51
2021-07-11 10:13:48 C 19 44 48.093 -43 57 50.94 U F51
2021-07-11 10:26:02 C 19 44 47.007 -43 58 10.02 U F51
2021-07-11 18:49:25 C 19 44 18.01 -44 10 03.7 V L81
2021-07-11 19:20:34 C 19 44 15.60 -44 10 56.8 V L81
2021-07-12 01:25:26 C 19 43 48.53 -44 20 44.8 X Y00
2021-07-12 01:30:05 C 19 43 48.16 -44 20 52.7 X Y00
2021-07-12 01:34:26 C 19 43 47.80 -44 20 59.6 X Y00
2021-07-12 01:42:23 C 19 43 47.54 -44 21 12.5 q X74
2021-07-12 01:53:06 C 19 43 46.54 -44 21 29.0 q X74
2021-07-12 02:04:31 C 19 43 45.53 -44 21 46.7 q X74
2021-07-12 02:16:04 C 19 43 44.48 -44 22 06.3 q X74
2021-07-12 02:26:47 C 19 43 43.46 -44 22 24.4 q X74
2021-07-12 02:38:12 C 19 43 42.37 -44 22 43.0 q X74
2021-07-15 06:06:08 C 19 37 09.12 -46 36 00.0 q X74
2021-07-15 06:16:57 C 19 37 07.76 -46 36 19.9 q X74
2021-07-15 06:28:30 C 19 37 06.31 -46 36 41.5 q X74
2021-07-17 03:01:10 C 19 32 00.97 -48 11 37.7 V 807
2021-07-17 03:07:26 C 19 31 59.98 -48 11 52.4 V 807
2021-07-17 03:13:34 C 19 31 59.01 -48 12 07.3 V 807
2021-07-18 01:22:15 C 19 28 54.18 -49 04 49.2 u 807
2021-07-18 01:28:31 C 19 28 53.12 -49 05 05.9 u 807
2021-07-18 01:34:45 C 19 28 52.01 -49 05 22.5 u 807
2021-07-18 02:51:00 C 19 28 38.33 -49 08 54.0 V W94
2021-07-18 02:59:06 C 19 28 36.81 -49 09 15.0 V W94
2021-07-18 03:07:12 C 19 28 35.17 -49 09 35.1 V W94
2021-07-18 03:18:39 C 19 28 33.12 -49 10 05.2 V W94
2021-07-18 03:26:47 C 19 28 31.60 -49 10 26.3 V W94
2021-07-18 03:35:00 C 19 28 30.11 -49 10 47.1 V W94
2021-07-27 21:39:26 C 17 35 18.04 -65 29 12.9 V L81
2021-07-27 21:50:36 C 17 35 00.96 -65 30 16.2 V L81
2021-07-27 22:01:37 C 17 34 44.18 -65 31 18.0 V L81
2021-07-30 23:13:52 C 14 36 27.91 -69 38 42.4 u 807
2021-07-30 23:22:58 C 14 35 55.43 -69 38 19.3 u 807
2021-07-30 23:32:02 C 14 35 23.07 -69 37 54.8 u 807