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
2019-03-22 20:57:13 C 08 54 22.09 +07 43 06.9 q L05
2019-03-22 20:57:21 C 08 54 22.09 +07 43 04.5 V K87
2019-03-22 21:13:37 C 08 54 23.99 +07 42 53.8 V K87
2019-03-22 21:20:12 C 08 54 24.69 +07 42 52.4 q 160
2019-03-22 21:23:09 C 08 54 25.03 +07 42 50.2 q 160
2019-03-22 21:26:03 C 08 54 25.39 +07 42 48.1 q 160
2019-03-22 21:28:41 C 08 54 25.75 +07 42 43.7 V K87
2019-03-23 19:55:05 C 08 57 11.50 +07 27 55.6 U 108
2019-03-23 19:59:23 C 08 57 12.10 +07 27 53.0 U 108
2019-03-23 20:03:40 C 08 57 12.54 +07 27 49.7 U 108
2019-03-23 20:12:59 C 08 57 13.66 +07 27 44.0 U 108
2019-03-23 20:19:25 C 08 57 14.41 +07 27 39.5 U 108
2019-03-23 20:39:19 C 08 57 16.98 +07 27 27.3 q 006
2019-03-23 20:41:19 C 08 57 17.19 +07 27 25.7 q 006
2019-03-23 20:43:19 C 08 57 17.42 +07 27 24.4 q 006
2019-03-23 20:45:19 C 08 57 17.66 +07 27 22.9 q 006
2019-03-23 20:47:49 C 08 57 17.93 +07 27 21.4 q 006
2019-03-23 20:49:19 C 08 57 18.12 +07 27 20.5 q 006
2019-03-23 20:51:19 C 08 57 18.34 +07 27 19.1 q 006
2019-03-23 20:53:19 C 08 57 18.58 +07 27 17.8 q 006
2019-03-23 21:13:21 C 08 57 20.38 +07 27 02.9 t 073
2019-03-23 21:38:16 C 08 57 23.65 +07 26 47.2 q 160
2019-03-23 21:41:15 C 08 57 24.00 +07 26 45.2 q 160
2019-03-23 21:44:16 C 08 57 24.34 +07 26 43.2 q 160
2019-03-23 21:45:52 C 08 57 24.24 +07 26 41.6 t 073
2019-03-23 22:10:48 C 08 57 27.22 +07 26 24.7 t 073
2019-03-24 08:47:39 C 08 58 46.31 +07 19 34.5 V T05
2019-03-24 08:53:16 C 08 58 46.95 +07 19 30.6 V T05
2019-03-24 09:00:08 C 08 58 47.75 +07 19 26.1 V T05
2019-03-24 09:05:57 C 08 58 48.46 +07 19 22.3 V T05
2019-03-24 09:12:36 C 08 58 49.22 +07 19 17.7 V T05
2019-03-24 09:18:31 C 08 58 49.91 +07 19 13.8 V T05
2019-03-24 09:25:58 C 08 58 50.78 +07 19 08.8 V T05
2019-03-25 19:25:51 C 09 03 06.94 +06 56 29.6 q 006
2019-03-25 19:27:51 C 09 03 07.16 +06 56 28.1 q 006
2019-03-25 19:29:51 C 09 03 07.40 +06 56 26.8 q 006
2019-03-25 19:31:51 C 09 03 07.65 +06 56 25.5 q 006
2019-03-25 19:34:20 C 09 03 07.96 +06 56 23.8 q 006
2019-03-25 19:36:51 C 09 03 08.24 +06 56 22.1 q 006
2019-03-25 19:38:51 C 09 03 08.50 +06 56 20.8 q 006
2019-03-25 19:40:50 C 09 03 08.73 +06 56 19.6 q 006
2019-03-26 08:41:38 C 09 04 46.00 +06 47 52.8 V T08
2019-03-26 08:54:15 C 09 04 47.49 +06 47 44.2 V T08
2019-03-26 09:06:12 C 09 04 48.91 +06 47 36.2 V T08
2019-03-26 09:18:48 C 09 04 50.41 +06 47 27.8 V T08
2019-03-28 05:09:08 C 09 10 25.41 +06 18 22.9 V 703
2019-03-28 05:14:50 C 09 10 26.11 +06 18 19.1 V 703
2019-03-28 05:20:33 C 09 10 26.80 +06 18 15.4 V 703
2019-03-28 05:26:15 C 09 10 27.49 +06 18 11.6 V 703
2019-03-28 06:58:10 C 09 10 39.908 +06 17 16.49 U F51