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
2019-03-06 21:09:13 C 08 13 06.26 +11 52 09.3 q K73
2019-03-06 21:15:12 C 08 13 06.73 +11 52 05.5 q K73
2019-03-06 21:21:06 C 08 13 07.23 +11 52 01.8 q K73
2019-03-07 12:39:23 C 08 14 30.92 +11 42 26.4 q D29
2019-03-07 12:59:46 C 08 14 32.60 +11 42 13.6 q D29
2019-03-07 13:20:08 C 08 14 34.29 +11 42 00.8 q D29
2019-03-08 19:34:04 C 08 17 22.85 +11 22 47.4 q 006
2019-03-08 19:35:34 C 08 17 23.00 +11 22 46.6 q 006
2019-03-08 19:37:34 C 08 17 23.18 +11 22 45.1 q 006
2019-03-08 19:40:03 C 08 17 23.40 +11 22 43.3 q 006
2019-03-08 19:42:04 C 08 17 23.56 +11 22 42.7 q 006
2019-03-08 19:44:04 C 08 17 23.73 +11 22 41.4 q 006
2019-03-08 19:46:04 C 08 17 23.87 +11 22 39.8 q 006
2019-03-08 19:48:04 C 08 17 24.08 +11 22 38.6 q 006
2019-03-09 18:35:06 C 08 19 35.05 +11 08 08.1 q 006
2019-03-09 18:37:06 C 08 19 35.18 +11 08 06.8 q 006
2019-03-09 18:39:06 C 08 19 35.34 +11 08 05.4 q 006
2019-03-09 18:41:06 C 08 19 35.60 +11 08 03.8 q 006
2019-03-09 18:43:06 C 08 19 35.78 +11 08 02.9 q 006
2019-03-09 18:44:36 C 08 19 35.83 +11 08 02.4 q 006
2019-03-09 18:47:07 C 08 19 36.13 +11 08 00.8 q 006
2019-03-10 08:58:48 C 08 20 57.41 +10 59 08.4 V T08
2019-03-10 09:11:42 C 08 20 58.57 +10 59 00.0 V T08
2019-03-10 09:23:47 C 08 20 59.66 +10 58 52.2 V T08
2019-03-10 09:36:33 C 08 21 00.82 +10 58 43.8 V T08
2019-03-10 16:48:31 C 08 21 44.77 +10 54 05.7 q C97
2019-03-10 16:50:45 C 08 21 44.91 +10 54 04.6 q C97
2019-03-10 16:52:58 C 08 21 45.11 +10 54 03.1 q C97
2019-03-10 16:55:58 C 08 21 45.36 +10 54 01.5 q C97
2019-03-11 14:04:19 C 08 23 51.73 +10 40 56.1 q 323
2019-03-11 14:07:19 C 08 23 52.00 +10 40 54.2 q 323
2019-03-12 14:36:11 C 08 26 22.00 +10 25 08.2 q 323
2019-03-12 15:48:05 C 08 26 28.94 +10 24 21.1 q 323
2019-03-12 16:19:48 C 08 26 33.77 +10 23 33.3 q C97
2019-03-12 16:22:01 C 08 26 34.00 +10 23 31.7 q C97
2019-03-12 16:24:14 C 08 26 34.21 +10 23 30.5 q C97
2019-03-12 16:27:10 C 08 26 34.53 +10 23 28.0 q C97
2019-03-12 23:40:12 C 08 27 19.96 +10 18 39.7 q I15
2019-03-12 23:43:27 C 08 27 20.29 +10 18 37.1 q I15
2019-03-12 23:46:41 C 08 27 20.60 +10 18 35.0 q I15
2019-03-14 16:49:31 C 08 31 41.57 +09 52 08.7 q C97
2019-03-14 16:51:42 C 08 31 41.82 +09 52 07.3 q C97
2019-03-14 16:53:55 C 08 31 42.03 +09 52 06.0 q C97
2019-03-14 16:56:06 C 08 31 42.17 +09 52 05.5 q C97
2019-03-15 04:25:20 C 08 32 56.97 +09 44 31.3 V 703
2019-03-15 04:33:30 C 08 32 57.79 +09 44 25.9 V 703
2019-03-15 04:41:41 C 08 32 58.62 +09 44 20.7 V 703
2019-03-15 04:49:51 C 08 32 59.49 +09 44 15.4 V 703
2019-03-15 08:07:03 C 08 33 20.83 +09 42 13.4 V T08
2019-03-15 08:16:34 C 08 33 21.78 +09 42 07.2 V T08