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
2019-04-27 21:28:54 C 10 46 50.77 -01 20 58.9 – q 006
2019-04-29 17:13:53 C 10 52 18.42 -01 45 32.8 – q C97
2019-04-29 17:16:03 C 10 52 18.65 -01 45 33.6 – q C97
2019-04-29 17:18:16 C 10 52 18.91 -01 45 34.9 – q C97
2019-04-29 17:20:27 C 10 52 19.15 -01 45 35.9 – q C97
2019-05-01 05:02:20 C 10 56 43.80 -02 05 30.2 – V G96
2019-05-01 05:12:33 C 10 56 45.01 -02 05 35.8 – V G96
2019-05-01 05:27:04 C 10 56 46.78 -02 05 43.5 – V G96
2019-05-01 05:28:30 C 10 56 46.91 -02 05 44.7 – V 703
2019-05-01 05:35:08 C 10 56 47.70 -02 05 48.3 – V G96
2019-05-01 05:36:16 C 10 56 47.84 -02 05 49.0 – V 703
2019-05-01 05:44:03 C 10 56 48.76 -02 05 53.3 – V 703
2019-05-01 05:51:49 C 10 56 49.68 -02 05 57.6 – V 703
2019-05-01 08:36:14 C 10 57 09.91 -02 07 24.6 – V T08
2019-05-01 08:48:33 C 10 57 11.37 -02 07 31.4 – V T08
2019-05-01 09:01:35 C 10 57 12.91 -02 07 38.5 – V T08
2019-05-01 09:14:07 C 10 57 14.40 -02 07 45.5 – V T08
2019-05-01 17:09:59 C 10 58 13.37 -02 12 09.7 – q C97
2019-05-01 17:12:10 C 10 58 13.62 -02 12 10.7 – q C97
2019-05-01 17:14:21 C 10 58 13.93 -02 12 12.2 – q C97
2019-05-01 17:16:34 C 10 58 14.15 -02 12 13.0 – q C97
2019-05-03 01:08:25 C 11 02 07.12 -02 29 42.1 – o Z22
2019-05-03 01:13:54 C 11 02 07.78 -02 29 45.1 – o Z22
2019-05-04 05:13:26 C 11 05 32.04 -02 44 58.5 – V 703
2019-05-04 05:20:55 C 11 05 32.91 -02 45 02.5 – V 703
2019-05-04 05:28:25 C 11 05 33.80 -02 45 06.4 – V 703
2019-05-04 05:35:54 C 11 05 34.67 -02 45 10.7 – V 703
2019-05-04 06:00:35 C 11 05 38.367 -02 45 20.76 – U F51
2019-05-04 06:02:27 C 11 05 38.582 -02 45 21.65 – U F51
2019-05-04 06:17:57 C 11 05 40.377 -02 45 30.20 – U F51
2019-05-04 06:19:49 C 11 05 40.587 -02 45 31.12 – U F51
2019-05-04 06:19:49 C 11 05 40.588 -02 45 31.11 – U F51
2019-05-04 06:35:18 C 11 05 42.388 -02 45 39.58 – U F51
2019-05-04 06:37:10 C 11 05 42.602 -02 45 40.57 – U F51
2019-05-04 06:52:37 C 11 05 44.390 -02 45 48.93 – U F51
2019-05-04 06:54:28 C 11 05 44.603 -02 45 49.86 – U F51
2019-05-04 06:54:28 C 11 05 44.605 -02 45 49.90 – U F51
2019-05-04 18:30:23 C 11 07 08.07 -02 52 06.6 – q C97
2019-05-04 18:32:35 C 11 07 08.32 -02 52 07.6 – q C97
2019-05-04 18:34:46 C 11 07 08.58 -02 52 08.5 – q C97
2019-05-04 18:36:57 C 11 07 08.82 -02 52 09.7 – q C97
2019-05-05 05:22:00 C 11 08 26.59 -02 57 58.8 – V 703
2019-05-05 05:29:44 C 11 08 27.48 -02 58 03.0 – V 703
2019-05-05 05:37:28 C 11 08 28.37 -02 58 07.0 – V 703
2019-05-05 05:45:13 C 11 08 29.27 -02 58 11.1 – V 703
2019-05-07 08:44:22 C 11 14 34.39 -03 25 16.9 – V T05
2019-05-07 08:57:17 C 11 14 35.87 -03 25 23.7 – V T05
2019-05-07 09:10:10 C 11 14 37.35 -03 25 30.5 – V T05
2019-05-07 09:23:01 C 11 14 38.83 -03 25 37.2 – V T05
2019-05-08 06:05:27 C 11 17 05.87 -03 36 34.5 – V 703