2021 NW

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4625806330 ± 4.56e-05
Semi-major axis (a)2.2508525892 AU ± 2.18e-04
Inclination (i)10.09187183° ± 6.54e-04
Long. of Asc. Node (Ω)268.25826917° ± 4.35e-04
Arg. of Perihelion (ω)36.90227014° ± 5.61e-04
Mean Anomaly (M)97.38784366° ± 6.67e-02
Mean Motion (n)0.2918715039°/day ± 4.24e-05
Perihelion dist (q)1.20965177 AU ± 1.56e-04
Aphelion dist (Q)3.29205340 AU ± 3.35e-04
Orbital Period3.37691851 yr ± 4.90e-04
Physical Parameters
H (abs. magnitude)22.72
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.238″
Uncertainty2
Orbit TypeAmor
MOID0.216252 AU
Observations Used36
Oppositions1
Arc Total2021-2021
First Observation Used2021-07-04
Last Observation Used2021-08-05
Observations (38)
Date Type RA Dec Mag Band Observatory
2021-07-04 08:29:51 C 16 21 07.144 -16 35 00.02 U F51
2021-07-04 08:46:56 C 16 21 07.637 -16 34 34.14 U F51
2021-07-04 09:04:02 C 16 21 08.124 -16 34 08.20 U F51
2021-07-04 09:21:09 C 16 21 08.615 -16 33 42.04 U F51
2021-07-05 02:44:38 C 16 21 49.08 -16 07 34.8 u H21
2021-07-05 02:53:23 C 16 21 49.36 -16 07 21.6 u H21
2021-07-05 03:10:55 C 16 21 49.91 -16 06 55.0 u H21
2021-07-05 03:12:22 C 16 21 49.96 -16 06 53.0 u H21
2021-07-05 09:32:27 C 16 22 03.991 -15 57 12.20 U F51
2021-07-05 09:41:37 C 16 22 04.286 -15 56 58.41 U F51
2021-07-05 09:50:49 C 16 22 04.585 -15 56 44.40 U F51
2021-07-05 10:00:04 C 16 22 04.883 -15 56 30.20 U F51
2021-07-05 21:46:40 C 16 22 35.60 -15 38 24.5 X Y00
2021-07-05 22:04:04 C 16 22 36.21 -15 37 58.5 X Y00
2021-07-05 22:21:28 C 16 22 36.82 -15 37 32.8 X Y00
2021-07-06 03:47:36 C 16 22 49.09 -15 29 49.8 u H21
2021-07-06 03:56:25 C 16 22 49.41 -15 29 36.3 u H21
2021-07-06 04:04:01 C 16 22 49.67 -15 29 24.9 u H21
2021-07-07 03:15:02 C 16 23 49.74 -14 54 32.8 u H21
2021-07-07 03:23:48 C 16 23 50.08 -14 54 19.6 u H21
2021-07-16 06:05:06 C 16 36 12.78 -09 34 51.2 V 291
2021-07-16 06:19:38 C 16 36 13.69 -09 34 31.1 V 291
2021-07-16 06:34:14 C 16 36 14.67 -09 34 11.5 V 291
2021-07-27 02:34:39 C 16 57 39.84 -03 56 31.8 u H21
2021-07-27 02:44:34 C 16 57 40.72 -03 56 20.0 u H21
2021-07-27 02:52:30 C 16 57 41.43 -03 56 10.8 u H21
2021-07-28 02:42:52 C 16 59 58.51 -03 28 15.8 u H21
2021-07-28 02:51:55 C 16 59 59.32 -03 28 05.5 u H21
2021-07-29 06:48:25 C 17 02 43.931 -02 55 59.26 U F51
2021-07-29 07:05:43 C 17 02 45.519 -02 55 39.74 U F51
2021-07-29 07:22:56 C 17 02 47.081 -02 55 20.26 U F51
2021-07-29 07:40:10 C 17 02 48.642 -02 55 00.56 U F51
2021-08-02 02:50:51 C 17 12 12.35 -01 16 32.5 u H21
2021-08-02 03:06:45 C 17 12 13.90 -01 16 16.0 u H21
2021-08-02 03:25:39 C 17 12 15.77 -01 15 55.8 u H21
2021-08-05 02:30:05 C 17 20 02.44 -00 05 19.4 u H21
2021-08-05 02:38:51 C 17 20 03.38 -00 05 11.1 u H21
2021-08-05 02:53:27 C 17 20 04.93 -00 04 57.4 u H21