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
2025-11-24 10:45:19 C 02 41 51.190 +20 38 22.40 X F51
2025-11-25 12:58:21 C 02 40 25.20 +20 30 42.4 V D29
2025-11-25 13:18:43 C 02 40 24.05 +20 30 36.5 V D29
2025-11-25 13:39:04 C 02 40 22.93 +20 30 31.4 V D29
2025-11-27 15:16:44 C 02 37 42.818 +20 16 03.61 V P07
2025-11-27 15:53:02 C 02 37 40.834 +20 15 52.38 V P07
2025-11-27 16:09:03 C 02 37 39.938 +20 15 47.56 V P07
2025-11-27 16:37:16 C 02 37 38.400 +20 15 39.38 V P07
2025-11-28 06:06:40 C 02 36 56.461 +20 11 35.49 X F52
2025-11-28 06:14:11 C 02 36 56.057 +20 11 33.35 X F52
2025-11-28 06:26:25 C 02 36 55.394 +20 11 29.87 X F52
2025-11-28 06:46:10 C 02 36 54.325 +20 11 24.12 X F52
2025-11-28 06:53:34 C 02 36 53.923 +20 11 21.98 X F52
2025-11-28 07:05:40 C 02 36 53.266 +20 11 18.47 X F52
2025-11-28 07:13:09 C 02 36 52.860 +20 11 16.30 X F52
2025-11-28 08:44:12 C 02 36 47.930 +20 10 49.66 V T05
2025-11-28 08:48:47 C 02 36 47.674 +20 10 48.22 V T05
2025-11-28 08:58:53 C 02 36 47.095 +20 10 44.94 V T05
2025-11-28 09:13:09 C 02 36 46.361 +20 10 40.98 V T05
2025-11-29 06:45:53 C 02 35 39.440 +20 04 18.34 V G96
2025-11-29 06:54:00 C 02 35 39.016 +20 04 15.92 V G96
2025-11-29 07:02:06 C 02 35 38.576 +20 04 13.58 V G96
2025-11-29 07:10:13 C 02 35 38.148 +20 04 11.10 V G96
2025-11-29 09:00:21 C 02 35 32.652 +20 03 39.89 V T05
2025-11-29 09:04:56 C 02 35 32.393 +20 03 38.84 V T05
2025-11-29 09:13:39 C 02 35 31.937 +20 03 36.25 V T05
2025-11-29 09:27:53 C 02 35 31.178 +20 03 32.29 V T05
2025-11-30 08:58:15 C 02 34 19.810 +19 56 36.96 V T05
2025-11-30 09:02:50 C 02 34 19.586 +19 56 35.81 V T05
2025-11-30 09:10:41 C 02 34 19.205 +19 56 33.68 V T05
2025-11-30 09:25:07 C 02 34 18.434 +19 56 29.08 V T05
2025-12-07 22:04:26 C 02 26 05.918 +19 04 35.65 V R17
2025-12-07 22:24:48 C 02 26 05.009 +19 04 29.71 V R17
2025-12-07 22:45:10 C 02 26 04.164 +19 04 24.20 V R17
2025-12-07 23:05:33 C 02 26 03.305 +19 04 18.80 V R17
2025-12-08 08:45:36 C 02 25 40.073 +19 01 39.86 V T05
2025-12-08 08:50:03 C 02 25 39.876 +19 01 38.68 V T05
2025-12-08 08:58:17 C 02 25 39.482 +19 01 35.94 V T05
2025-12-08 09:12:34 C 02 25 38.945 +19 01 32.52 V T05
2025-12-09 08:55:26 C 02 24 43.615 +18 55 05.20 V T08
2025-12-09 09:00:05 C 02 24 43.416 +18 55 04.33 V T08
2025-12-09 09:08:00 C 02 24 43.118 +18 55 01.88 V T08
2025-12-09 09:22:42 C 02 24 42.509 +18 54 57.96 V T08
2025-12-10 06:39:57 C 02 23 54.701 +18 49 13.87 V G96
2025-12-10 06:48:04 C 02 23 54.384 +18 49 11.75 V G96
2025-12-10 06:56:10 C 02 23 54.056 +18 49 09.73 V G96
2025-12-10 07:04:17 C 02 23 53.758 +18 49 07.28 V G96
2025-12-10 08:15:08 C 02 23 51.331 +18 48 50.40 V T05
2025-12-10 08:20:30 C 02 23 51.127 +18 48 49.18 V T05
2025-12-10 08:29:14 C 02 23 50.796 +18 48 46.69 V T05