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
2018-11-27 14:00:05 C 07 29 09.00 +25 11 48.6 U T08
2018-11-27 14:04:29 C 07 29 09.16 +25 11 48.5 U T08
2018-11-27 14:25:24 C 07 29 10.01 +25 11 45.2 U T08
2018-11-27 14:34:04 C 07 29 10.37 +25 11 44.7 U T08
2018-11-29 04:00:06 C 07 30 45.71 +25 07 36.8 q 160
2018-11-29 04:04:13 C 07 30 45.84 +25 07 36.1 q 160
2018-11-29 04:08:19 C 07 30 46.08 +25 07 35.7 q 160
2018-11-29 14:09:33 C 07 31 11.05 +25 06 34.6 U T05
2018-11-29 14:15:01 C 07 31 11.26 +25 06 34.1 U T05
2018-11-29 14:33:59 C 07 31 11.96 +25 06 31.8 U T05
2018-11-29 14:44:48 C 07 31 12.38 +25 06 30.6 U T05
2018-12-01 02:07:30 C 07 32 38.36 +25 02 29.9 V C95
2018-12-01 02:12:35 C 07 32 38.55 +25 02 29.4 V C95
2018-12-01 02:15:58 C 07 32 38.66 +25 02 28.9 V C95
2018-12-01 02:19:21 C 07 32 38.80 +25 02 28.6 V C95
2018-12-01 02:22:44 C 07 32 38.91 +25 02 28.3 V C95
2018-12-01 02:26:07 C 07 32 39.04 +25 02 27.9 V C95
2018-12-03 13:05:51 C 07 34 53.14 +24 55 51.7 U T05
2018-12-03 13:24:36 C 07 34 53.76 +24 55 49.7 U T05
2018-12-03 13:33:11 C 07 34 54.05 +24 55 48.4 U T05
2018-12-03 13:59:40 C 07 34 54.90 +24 55 45.4 U T05
2018-12-03 17:10:05 C 07 35 02.41 +24 55 16.9 o C94
2018-12-03 17:14:59 C 07 35 02.60 +24 55 15.2 o C94
2018-12-03 18:02:59 C 07 35 04.21 +24 55 10.2 o C94
2018-12-03 18:07:47 C 07 35 04.42 +24 55 09.8 o C94
2018-12-03 18:12:36 C 07 35 04.55 +24 55 09.2 o C94
2018-12-04 02:23:44 C 07 35 22.46 +24 54 17.4 c J04
2018-12-04 02:40:34 C 07 35 23.00 +24 54 15.6 c J04
2018-12-04 02:57:24 C 07 35 23.55 +24 54 13.7 c J04
2018-12-04 03:19:14 C 07 35 24.25 +24 54 11.2 c J04
2018-12-05 07:33:10 C 07 36 24.33 +24 50 49.9 V 703
2018-12-05 07:40:50 C 07 36 24.57 +24 50 48.9 V 703
2018-12-05 07:48:30 C 07 36 24.85 +24 50 47.9 V 703
2018-12-05 07:56:10 C 07 36 25.07 +24 50 47.5 V 703
2018-12-07 12:54:28 C 07 38 10.06 +24 44 29.0 U T05
2018-12-07 13:02:01 C 07 38 10.26 +24 44 28.1 U T05
2018-12-07 13:14:18 C 07 38 10.60 +24 44 26.4 U T05
2018-12-07 13:26:16 C 07 38 10.93 +24 44 25.1 U T05
2018-12-09 12:14:30 C 07 39 36.89 +24 38 38.5 U T08
2018-12-09 12:27:24 C 07 39 37.22 +24 38 36.9 U T08
2018-12-09 12:35:22 C 07 39 37.41 +24 38 35.8 U T08
2018-12-09 12:53:06 C 07 39 37.86 +24 38 33.7 U T08
2018-12-10 11:35:24 C 07 40 16.45 +24 35 38.0 V G96
2018-12-10 11:42:44 C 07 40 16.63 +24 35 37.0 V G96
2018-12-10 11:50:05 C 07 40 16.81 +24 35 36.0 V G96
2018-12-10 11:57:26 C 07 40 16.99 +24 35 34.9 V G96
2018-12-12 01:31:20 C 07 41 18.25 +24 30 43.3 q 160
2018-12-12 01:35:14 C 07 41 18.30 +24 30 43.2 q 160
2018-12-12 01:38:35 C 07 41 18.39 +24 30 42.4 q 160
2018-12-18 17:45:12 C 07 44 44.65 +24 08 40.7 o C94