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
2019-04-01 19:23:34 C 09 24 44.57 +05 05 46.5 q 006
2019-04-01 19:25:34 C 09 24 44.83 +05 05 44.9 q 006
2019-04-01 19:27:34 C 09 24 45.08 +05 05 43.6 q 006
2019-04-01 19:29:34 C 09 24 45.33 +05 05 42.4 q 006
2019-04-03 07:47:56 C 09 29 32.18 +04 42 32.6 q E89
2019-04-03 07:56:11 C 09 29 33.20 +04 42 27.3 q E89
2019-04-03 09:06:04 C 09 29 41.18 +04 41 16.3 V T08
2019-04-03 09:17:53 C 09 29 42.66 +04 41 08.6 V T08
2019-04-03 09:30:27 C 09 29 44.25 +04 41 00.3 V T08
2019-04-03 20:59:50 C 09 31 16.00 +04 33 18.7 V G34
2019-04-03 21:02:13 C 09 31 16.31 +04 33 17.3 V G34
2019-04-03 21:05:23 C 09 31 16.70 +04 33 15.2 V G34
2019-04-04 20:32:43 C 09 34 23.44 +04 18 03.3 q 006
2019-04-04 20:34:43 C 09 34 23.71 +04 18 02.5 q 006
2019-04-04 20:36:43 C 09 34 23.94 +04 18 00.9 q 006
2019-04-04 20:38:43 C 09 34 24.20 +04 17 59.7 q 006
2019-04-04 20:40:43 C 09 34 24.46 +04 17 58.4 q 006
2019-04-04 20:42:13 C 09 34 24.63 +04 17 57.5 q 006
2019-04-04 20:44:44 C 09 34 24.95 +04 17 55.7 q 006
2019-04-04 20:46:43 C 09 34 25.21 +04 17 54.4 q 006
2019-04-05 08:59:53 C 09 36 01.77 +04 10 07.1 V T05
2019-04-05 09:12:48 C 09 36 03.41 +04 09 58.6 V T05
2019-04-05 09:25:53 C 09 36 05.06 +04 09 50.2 V T05
2019-04-05 09:38:52 C 09 36 06.71 +04 09 41.7 V T05
2019-04-06 04:33:40 C 09 38 38.30 +03 57 22.5 V G96
2019-04-06 04:41:46 C 09 38 39.34 +03 57 17.2 V G96
2019-04-06 04:49:52 C 09 38 40.35 +03 57 12.1 V G96
2019-04-06 04:57:57 C 09 38 41.39 +03 57 06.8 V G96
2019-04-06 11:39:48 C 09 39 35.61 +03 52 47.1 q D29
2019-04-06 12:00:10 C 09 39 38.19 +03 52 34.0 q D29
2019-04-06 12:20:32 C 09 39 40.77 +03 52 20.9 q D29
2019-04-06 20:22:05 C 09 40 44.67 +03 47 07.0 q 006
2019-04-06 20:25:05 C 09 40 45.14 +03 47 04.5 q 006
2019-04-06 20:28:05 C 09 40 45.55 +03 47 03.0 q 006
2019-04-06 20:31:05 C 09 40 45.86 +03 47 01.2 q 006
2019-04-06 20:34:50 C 09 40 46.35 +03 46 58.8 q 006
2019-04-06 20:37:05 C 09 40 46.62 +03 46 57.2 q 006
2019-04-06 20:40:50 C 09 40 47.12 +03 46 54.3 q 006
2019-04-06 20:43:05 C 09 40 47.39 +03 46 53.2 q 006
2019-04-08 19:17:19 C 09 47 00.23 +03 16 58.5 q 006
2019-04-08 19:18:19 C 09 47 00.32 +03 16 57.9 q 006
2019-04-08 19:19:18 C 09 47 00.48 +03 16 57.5 q 006
2019-04-08 19:20:19 C 09 47 00.60 +03 16 56.8 q 006
2019-04-08 19:21:19 C 09 47 00.72 +03 16 56.1 q 006
2019-04-09 04:34:45 C 09 48 13.95 +03 11 05.6 V 703
2019-04-09 04:42:18 C 09 48 14.89 +03 11 00.6 V 703
2019-04-09 04:49:51 C 09 48 15.85 +03 10 56.1 V 703
2019-04-09 04:57:25 C 09 48 16.83 +03 10 51.2 V 703
2019-04-09 08:56:41 C 09 48 48.35 +03 08 22.9 V T05
2019-04-09 09:09:39 C 09 48 50.00 +03 08 14.6 V T05