18736 (1998 NU)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4911399789 ± 8.50e-09
Semi-major axis (a)2.3496959498 AU ± 1.22e-09
Inclination (i)2.80616050° ± 8.43e-07
Long. of Asc. Node (Ω)297.42195380° ± 1.66e-05
Arg. of Perihelion (ω)222.90480980° ± 1.67e-05
Mean Anomaly (M)309.18689309° ± 6.93e-07
Mean Motion (n)0.2736495723°/day ± 2.12e-10
Perihelion dist (q)1.19566633 AU ± 2.00e-08
Aphelion dist (Q)3.50372557 AU ± 2.01e-08
Orbital Period3.60178266 yr ± 2.80e-09
Physical Parameters
H (abs. magnitude)15.98
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.233″
Uncertainty0
Orbit TypeAmor
MOID0.207942 AU
Observations Used1910
Oppositions52
Arc Total1954-2026
First Observation Used1954-05-25
Last Observation Used2026-01-12
Observations (2071)
Date Type RA Dec Mag Band Observatory
2000-11-01 11:18:48 C 08 25 33.18 +21 30 33.2 19.1 c 704
2000-11-01 11:38:43 C 08 25 35.43 +21 30 24.1 18.4 c 704
2000-11-01 11:59:40 C 08 25 37.81 +21 30 16.2 19.1 c 704
2000-11-02 10:05:00 C 08 28 08.44 +21 20 52.8 18.5 c 704
2000-11-02 10:24:35 C 08 28 10.63 +21 20 45.0 18.5 c 704
2000-11-02 10:44:10 C 08 28 12.85 +21 20 36.7 19.2 c 704
2000-11-02 11:03:54 C 08 28 15.05 +21 20 28.1 18.7 c 704
2000-11-06 09:26:38 C 08 39 02.84 +20 38 05.2 18.4 c 704
2000-11-06 09:47:02 C 08 39 05.18 +20 37 55.7 18.6 c 704
2000-11-06 09:47:06 C 08 39 05.16 +20 37 55.6 18.7 c 704
2000-11-06 10:06:59 C 08 39 07.39 +20 37 46.6 18.8 c 704
2000-11-06 10:08:49 C 08 39 07.67 +20 37 45.7 18.4 c 704
2000-11-06 10:26:56 C 08 39 09.68 +20 37 37.1 18.5 c 704
2000-11-06 10:29:02 C 08 39 09.93 +20 37 36.6 19.0 c 704
2000-11-06 10:46:54 C 08 39 11.96 +20 37 27.9 19.3 c 704
2000-11-27 10:29:17 C 09 39 09.98 +15 41 41.0 18.3 c 704
2000-11-27 10:50:25 C 09 39 12.55 +15 41 26.0 18.6 c 704
2000-11-27 11:11:41 C 09 39 15.09 +15 41 10.3 18.5 c 704
2000-11-27 11:32:49 C 09 39 17.62 +15 40 55.9 18.4 c 704
2000-11-27 11:53:58 C 09 39 20.22 +15 40 40.5 18.5 c 704
2000-12-21 10:57:38 C 10 53 17.79 +07 19 07.8 16.7 c 704
2000-12-21 11:19:19 C 10 53 20.58 +07 18 45.2 17.3 c 704
2000-12-21 11:41:06 C 10 53 23.44 +07 18 22.8 16.7 c 704
2000-12-21 12:02:51 C 10 53 26.28 +07 18 00.0 16.8 c 704
2000-12-21 12:24:31 C 10 53 29.13 +07 17 37.9 16.7 c 704
2000-12-24 18:02:24 C 11 03 57.34 +05 55 54.9 903
2000-12-24 18:08:14 C 11 03 58.14 +05 55 48.0 903
2000-12-24 18:14:30 C 11 03 58.97 +05 55 42.1 903
2000-12-28 10:50:02 C 11 16 02.71 +04 18 51.9 17.0 c 704
2000-12-28 11:11:28 C 11 16 05.59 +04 18 28.3 16.9 c 704
2000-12-28 11:32:49 C 11 16 08.44 +04 18 04.2 16.8 c 704
2000-12-28 11:54:29 C 11 16 11.35 +04 17 40.2 17.8 c 704
2000-12-28 12:15:56 C 11 16 14.13 +04 17 16.2 17.3 c 704
2001-01-02 10:49:55 C 11 32 34.55 +02 02 06.0 16.5 c 704
2001-01-02 11:11:50 C 11 32 37.50 +02 01 40.1 17.8 c 704
2001-01-02 11:33:44 C 11 32 40.47 +02 01 15.0 17.3 c 704
2001-01-02 11:55:40 C 11 32 43.41 +02 00 49.4 17.0 c 704
2001-01-03 10:52:32 C 11 35 54.75 +01 33 59.9 17.0 c 704
2001-01-03 11:15:02 C 11 35 57.80 +01 33 34.0 17.4 c 704
2001-01-03 11:37:24 C 11 36 00.80 +01 33 07.6 17.3 c 704
2001-01-03 11:59:37 C 11 36 03.81 +01 32 41.2 17.3 c 704
2001-01-03 12:21:42 C 11 36 06.80 +01 32 15.5 17.2 c 704
2001-01-28 06:53:45 C 12 59 27.88 -10 31 48.9 844
2001-01-28 07:20:16 C 12 59 31.50 -10 32 21.2 844
2001-01-28 07:31:16 C 12 59 32.96 -10 32 33.7 844
2001-01-28 10:55:45 C 13 00 01.22 -10 36 59.0 670
2001-01-28 11:59:25 C 13 00 09.67 -10 38 15.2 670
2001-01-29 07:24:24 C 13 02 50.10 -11 00 56.6 808
2001-01-29 09:25:02 C 13 03 06.68 -11 03 38.3 17.2 c 704
2001-01-29 09:46:19 C 13 03 09.52 -11 04 02.8 18.1 c 704