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
2019-04-09 09:22:40 C 09 48 51.66 +03 08 06.3 – V T05
2019-04-09 09:35:42 C 09 48 53.32 +03 07 57.9 – V T05
2019-04-09 18:13:55 C 09 50 03.06 +03 02 14.9 – q 168
2019-04-09 20:06:54 C 09 50 17.77 +03 01 02.5 – q 168
2019-04-09 20:12:55 C 09 50 18.56 +03 00 58.8 – q 168
2019-04-10 05:04:39 C 09 51 29.85 +02 55 28.6 – V G96
2019-04-10 05:12:46 C 09 51 30.88 +02 55 23.4 – V G96
2019-04-10 05:20:53 C 09 51 31.92 +02 55 18.2 – V G96
2019-04-10 05:28:58 C 09 51 32.95 +02 55 13.0 – V G96
2019-04-11 08:35:55 C 09 55 09.82 +02 38 06.2 – V T08
2019-04-11 08:48:24 C 09 55 11.41 +02 37 58.3 – V T08
2019-04-11 09:01:39 C 09 55 13.11 +02 37 49.9 – V T08
2019-04-11 09:14:10 C 09 55 14.69 +02 37 42.0 – V T08
2019-04-12 20:08:56 C 09 59 54.74 +02 15 33.6 – q 006
2019-04-12 20:10:12 C 09 59 54.93 +02 15 32.6 – q 006
2019-04-12 20:11:52 C 09 59 55.12 +02 15 31.5 – q 006
2019-04-12 20:13:32 C 09 59 55.33 +02 15 30.7 – q 006
2019-04-12 20:14:49 C 09 59 55.50 +02 15 30.0 – q 006
2019-04-12 20:16:55 C 09 59 55.79 +02 15 28.4 – q 006
2019-04-12 20:18:13 C 09 59 55.94 +02 15 28.1 – q 006
2019-04-12 20:19:28 C 09 59 56.13 +02 15 26.9 – q 006
2019-04-13 00:04:13 C 10 00 25.76 +02 13 31.3 – q Y00
2019-04-13 00:06:39 C 10 00 26.07 +02 13 29.2 – q Y00
2019-04-13 00:09:12 C 10 00 26.35 +02 13 27.1 – q Y00
2019-04-15 08:33:53 C 10 07 55.55 +01 37 59.6 – V T08
2019-04-15 08:46:27 C 10 07 57.13 +01 37 51.9 – V T08
2019-04-15 08:58:21 C 10 07 58.64 +01 37 44.4 – V T08
2019-04-15 09:10:50 C 10 08 00.23 +01 37 36.8 – V T08
2019-04-15 19:05:41 C 10 09 20.04 +01 31 19.0 – t 240
2019-04-15 19:09:17 C 10 09 20.50 +01 31 16.7 – t 240
2019-04-15 19:12:36 C 10 09 20.92 +01 31 14.7 – t 240
2019-04-17 09:55:40 C 10 14 26.40 +01 07 34.8 – V T05
2019-04-17 10:28:38 C 10 14 30.60 +01 07 14.6 – V T05
2019-04-17 10:34:03 C 10 14 31.29 +01 07 11.4 – V T05
2019-04-18 09:19:39 C 10 17 31.14 +00 53 18.7 – V T08
2019-04-18 09:30:27 C 10 17 32.50 +00 53 12.2 – V T08
2019-04-18 09:46:22 C 10 17 34.53 +00 53 02.4 – V T08
2019-04-18 09:47:42 C 10 17 34.69 +00 53 01.8 – V T08
2019-04-18 09:48:22 C 10 17 34.79 +00 53 01.1 – V T08
2019-04-18 09:49:02 C 10 17 34.86 +00 53 01.0 – V T08
2019-04-18 09:49:41 C 10 17 34.93 +00 53 00.5 – V T08
2019-04-18 10:15:27 C 10 17 38.22 +00 52 44.7 – V T08
2019-04-18 19:35:07 C 10 18 52.77 +00 46 55.3 – V K74
2019-04-18 19:37:31 C 10 18 53.09 +00 46 53.8 – V K74
2019-04-18 19:39:57 C 10 18 53.39 +00 46 51.9 – V K74
2019-04-18 20:17:35 C 10 18 58.15 +00 46 29.3 – V K74
2019-04-18 20:20:32 C 10 18 58.53 +00 46 27.5 – V K74
2019-04-19 10:33:33 C 10 20 49.14 +00 38 01.1 – V T08
2019-04-19 10:45:19 C 10 20 50.64 +00 37 54.0 – V T08
2019-04-19 10:57:01 C 10 20 52.13 +00 37 46.8 – V T08