IAA RAS IAA Minor Planet Database

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
2019-02-23 19:52:29 C 07 53 36.93 +14 34 07.7 – V G34
2019-02-23 19:56:40 C 07 53 37.14 +14 34 05.2 – V G34
2019-02-23 20:00:51 C 07 53 37.35 +14 34 02.9 – V G34
2019-02-23 20:05:02 C 07 53 37.56 +14 34 00.5 – V G34
2019-02-23 20:09:13 C 07 53 37.78 +14 33 57.9 – V G34
2019-02-23 20:13:24 C 07 53 37.99 +14 33 55.5 – V G34
2019-02-23 20:25:02 C 07 53 38.67 +14 33 48.9 – q K74
2019-02-23 20:28:24 C 07 53 38.82 +14 33 47.2 – q K74
2019-02-23 20:30:50 C 07 53 38.95 +14 33 45.9 – q K74
2019-02-23 20:38:38 C 07 53 39.36 +14 33 41.2 – q K74
2019-02-23 20:40:14 C 07 53 39.45 +14 33 40.0 – q K74
2019-02-23 20:42:46 C 07 53 39.58 +14 33 38.6 – q K74
2019-02-23 21:00:33 C 07 53 40.46 +14 33 28.3 – q K74
2019-02-24 14:57:32 C 07 54 43.09 +14 23 32.2 – V 323
2019-02-24 15:29:17 C 07 54 44.74 +14 23 13.1 – V 323
2019-02-24 20:08:09 C 07 55 02.62 +14 19 48.3 – a 233
2019-02-24 20:15:46 C 07 55 03.03 +14 19 43.6 – a 233
2019-02-24 20:23:20 C 07 55 03.43 +14 19 39.2 – a 233
2019-02-24 20:29:34 C 07 55 03.75 +14 19 35.6 – a 233
2019-02-24 20:36:46 C 07 55 04.15 +14 19 31.0 – a 233
2019-02-25 12:29:24 C 07 56 03.17 +14 10 43.1 – V 323
2019-02-25 13:00:40 C 07 56 04.88 +14 10 24.6 – V 323
2019-02-25 21:59:54 C 07 56 38.50 +14 04 29.6 14.7 q J43
2019-02-25 22:12:08 C 07 56 39.18 +14 04 22.3 14.7 q J43
2019-02-25 22:24:25 C 07 56 39.85 +14 04 14.9 14.6 q J43
2019-02-25 22:36:40 C 07 56 40.53 +14 04 07.5 14.6 q J43
2019-02-26 01:30:25 C 07 56 51.84 +14 02 57.3 – q 834
2019-02-26 01:55:28 C 07 56 53.24 +14 02 42.2 – q 834
2019-02-26 14:12:25 C 07 57 41.04 +13 55 18.8 – q 323
2019-02-26 15:40:39 C 07 57 46.14 +13 54 24.9 – q 323
2019-02-26 19:17:43 C 07 58 01.96 +13 51 31.8 – V G33
2019-02-26 19:20:24 C 07 58 02.13 +13 51 30.2 – V G33
2019-02-26 19:40:58 C 07 58 03.35 +13 51 18.8 – V G33
2019-02-26 19:44:03 C 07 58 03.52 +13 51 15.9 – V G33
2019-02-26 19:47:33 C 07 58 03.76 +13 51 14.0 – V G33
2019-02-27 19:58:43 C 07 59 41.98 +13 36 37.5 – V G33
2019-02-27 19:59:37 C 07 59 42.02 +13 36 36.7 – V G33
2019-02-27 20:01:55 C 07 59 42.17 +13 36 35.4 – V G33
2019-02-27 20:02:46 C 07 59 42.24 +13 36 35.3 – V G33
2019-02-27 20:03:40 C 07 59 42.28 +13 36 34.2 – V G33
2019-02-27 20:06:47 C 07 59 42.51 +13 36 32.5 – V G33
2019-02-27 20:07:47 C 07 59 42.58 +13 36 31.8 – V G33
2019-02-27 20:09:41 C 07 59 42.71 +13 36 30.7 – V G33
2019-02-27 20:10:26 C 07 59 42.74 +13 36 30.4 – V G33
2019-02-27 20:11:20 C 07 59 42.78 +13 36 29.8 – V G33
2019-02-27 20:14:10 C 07 59 42.95 +13 36 28.2 – V G33
2019-02-27 20:15:52 C 07 59 43.06 +13 36 27.0 – V G33
2019-02-27 20:49:20 C 07 59 44.83 +13 36 13.2 – q K73
2019-02-27 20:55:07 C 07 59 45.19 +13 36 09.9 – q K73
2019-02-27 21:00:54 C 07 59 45.54 +13 36 05.9 – q K73