189865 (2003 NC)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.8055624239 ± 7.71e-08
Semi-major axis (a)1.4056993878 AU ± 4.34e-09
Inclination (i)21.57066207° ± 1.86e-05
Long. of Asc. Node (Ω)288.38766046° ± 1.04e-05
Arg. of Perihelion (ω)224.32508637° ± 1.46e-05
Mean Anomaly (M)191.87519167° ± 1.22e-05
Mean Motion (n)0.5913894771°/day ± 2.74e-09
Perihelion dist (q)0.27332078 AU ± 1.08e-07
Aphelion dist (Q)2.53807799 AU ± 1.09e-07
Orbital Period1.66662804 yr ± 7.73e-09
Physical Parameters
H (abs. magnitude)19.48
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.524″
Uncertainty0
Orbit TypeApollo
MOID0.037249 AU
Observations Used185
Oppositions8
Arc Total2003-2024
First Observation Used2003-07-01
Last Observation Used2024-09-30
Observations (191)
Date Type RA Dec Mag Band Observatory
2003-07-01 08:59:09 C 22 09 20.59 -08 07 18.5 18.8 c 704
2003-07-01 09:13:32 C 22 09 15.03 -08 07 24.5 19.5 c 704
2003-07-01 09:27:57 C 22 09 09.36 -08 07 30.3 19.2 c 704
2003-07-01 09:56:39 C 22 08 58.07 -08 07 40.2 18.7 c 704
2003-07-02 00:38:57 C 22 03 20.28 -08 12 59.8 o 620
2003-07-02 00:46:13 C 22 03 17.47 -08 13 02.7 o 620
2003-07-02 08:49:39 C 22 00 12.77 -08 15 48.8 18.4 c 704
2003-07-02 09:03:57 C 22 00 07.26 -08 15 54.9 19.3 c 704
2003-07-02 09:08:05 C 22 00 05.65 -08 15 55.8 18.5 c 704
2003-07-02 09:18:24 C 22 00 01.68 -08 15 59.6 18.5 c 704
2003-07-02 09:23:11 C 21 59 59.82 -08 16 01.4 19.0 c 704
2003-07-02 09:29:26 C 21 59 57.48 -08 16 03.0 c 926
2003-07-02 09:30:23 C 21 59 57.10 -08 16 03.5 c 926
2003-07-02 09:31:20 C 21 59 56.76 -08 16 03.6 c 926
2003-07-02 09:32:50 C 21 59 56.04 -08 16 04.7 18.7 c 704
2003-07-02 09:39:10 C 21 59 53.59 -08 16 06.5 18.4 c 704
2003-07-02 09:47:13 C 21 59 50.42 -08 16 09.1 18.6 c 704
2003-07-02 09:54:27 C 21 59 47.69 -08 16 11.9 18.7 c 704
2003-07-02 09:57:49 C 21 59 46.68 -08 16 13.6 c 673
2003-07-02 09:59:30 C 21 59 46.04 -08 16 14.0 c 673
2003-07-02 10:00:40 C 21 59 45.58 -08 16 14.5 c 673
2003-07-02 10:01:50 C 21 59 45.15 -08 16 15.0 c 673
2003-07-03 06:55:51 C 21 51 51.07 -08 23 16.6 c 649
2003-07-03 06:58:55 C 21 51 49.94 -08 23 17.8 c 649
2003-07-03 07:02:05 C 21 51 48.70 -08 23 18.9 c 649
2003-07-03 08:50:11 C 21 51 07.81 -08 23 54.0 18.4 c 704
2003-07-03 09:04:35 C 21 51 02.31 -08 23 58.1 18.9 c 704
2003-07-03 09:19:03 C 21 50 56.81 -08 24 02.6 19.0 c 704
2003-07-03 09:33:27 C 21 50 51.23 -08 24 07.5 18.8 c 704
2003-07-03 09:47:53 C 21 50 45.75 -08 24 11.9 18.7 c 704
2003-07-05 17:40:29 C 21 30 13.07 -08 40 23.9 c E14
2003-07-05 17:45:42 C 21 30 11.17 -08 40 25.4 c E14
2003-07-05 17:50:56 C 21 30 09.25 -08 40 26.8 c E14
2003-07-06 06:12:42 C 21 25 46.10 -08 44 15.7 c 649
2003-07-06 06:18:11 C 21 25 44.16 -08 44 18.1 c 649
2003-07-06 06:23:39 C 21 25 42.27 -08 44 18.0 c 649
2003-07-06 07:20:02 C 21 25 21.92 -08 44 33.6 d 734
2003-07-06 07:27:03 C 21 25 19.35 -08 44 36.5 d 734
2003-07-08 23:55:14 C 21 03 19.19 -08 59 45.8 c 599
2003-07-09 00:16:37 C 21 03 12.15 -08 59 50.4 c 599
2003-07-09 00:37:33 C 21 03 05.16 -08 59 54.6 c 599
2003-07-09 06:31:05 C 21 01 10.30 -09 01 06.1 c 649
2003-07-09 06:33:38 C 21 01 09.44 -09 01 06.7 c 649
2003-07-09 06:36:12 C 21 01 08.59 -09 01 07.5 c 649
2003-07-13 09:34:29 C 20 31 13.90 -09 18 05.2 c 448
2003-07-13 09:39:06 C 20 31 12.70 -09 18 05.8 c 448
2003-07-13 09:46:55 C 20 31 10.30 -09 18 08.2 c 448
2003-07-17 22:15:55 C 20 03 46.33 -09 31 21.0 c 587
2003-07-17 22:20:32 C 20 03 45.45 -09 31 20.5 c 587
2003-07-18 13:43:26 C 20 00 18.51 -09 32 31.4 c 413