2018 NB4

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4589618712 ± 2.90e-07
Semi-major axis (a)2.0868356041 AU ± 2.73e-08
Inclination (i)13.77138804° ± 2.75e-05
Long. of Asc. Node (Ω)349.90495672° ± 9.86e-05
Arg. of Perihelion (ω)204.29640573° ± 8.53e-05
Mean Anomaly (M)211.04230687° ± 2.44e-05
Mean Motion (n)0.3269489294°/day ± 6.42e-09
Perihelion dist (q)1.12905763 AU ± 6.06e-07
Aphelion dist (Q)3.04461358 AU ± 6.07e-07
Orbital Period3.01461848 yr ± 5.92e-08
Physical Parameters
H (abs. magnitude)19.52
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.199″
Uncertainty0
Orbit TypeAmor
MOID0.150257 AU
Observations Used37
Oppositions6
Arc Total2015-2024
First Observation Used2015-08-21
Last Observation Used2024-01-14
Observations (38)
Date Type RA Dec Mag Band Observatory
2015-08-21 08:54:46 C 20 50 27.107 -32 16 16.46 V F51
2015-08-21 09:09:07 C 20 50 26.299 -32 16 12.65 V F51
2015-08-21 09:23:25 C 20 50 25.488 -32 16 08.63 V F51
2015-08-21 09:37:42 C 20 50 24.699 -32 16 05.02 V F51
2017-11-21 15:07:33 C 11 56 43.723 +08 34 21.29 V F51
2017-11-21 15:13:07 C 11 56 44.411 +08 34 14.64 V F51
2017-11-21 15:18:40 C 11 56 45.133 +08 34 08.43 V F51
2017-12-23 15:21:09 C 13 43 36.420 -07 55 39.53 V F51
2017-12-23 15:34:15 C 13 43 38.347 -07 55 57.96 V F51
2017-12-23 15:40:48 C 13 43 39.274 -07 56 06.90 V F51
2018-07-10 11:39:59 C 21 44 43.691 -35 38 15.63 U F51
2018-07-10 12:06:03 C 21 44 41.920 -35 38 19.59 U F51
2018-07-10 12:19:03 C 21 44 41.017 -35 38 21.51 U F51
2018-07-12 02:09:56 C 21 42 10.340 -35 43 30.52 V J04
2018-07-12 06:20:37 C 21 41 53.24 -35 43 55.9 U 807
2018-07-12 06:26:45 C 21 41 52.81 -35 43 56.8 U 807
2018-07-12 06:33:19 C 21 41 52.34 -35 43 57.5 U 807
2018-07-12 15:53:11 C 21 41 13.94 -35 45 05.6 U 474
2018-07-12 15:58:15 C 21 41 13.56 -35 45 06.3 U 474
2018-07-12 16:03:19 C 21 41 13.19 -35 45 07.1 U 474
2018-07-12 16:08:23 C 21 41 12.89 -35 45 07.7 U 474
2018-07-14 05:19:32 C 21 38 37.92 -35 49 30.4 U 807
2018-07-14 05:26:20 C 21 38 37.41 -35 49 31.1 U 807
2018-07-14 05:32:49 C 21 38 36.95 -35 49 31.9 U 807
2018-07-14 13:34:23 C 21 38 02.76 -35 50 21.6 U 474
2018-07-14 13:44:31 C 21 38 01.99 -35 50 22.9 U 474
2018-07-14 13:54:40 C 21 38 01.22 -35 50 23.9 U 474
2018-09-05 03:03:24 C 20 22 03.75 -31 44 24.3 U 807
2018-09-05 03:21:03 C 20 22 03.36 -31 44 17.4 U 807
2018-09-05 03:38:01 C 20 22 02.95 -31 44 11.3 U 807
2018-09-06 01:17:04 C 20 21 37.54 -31 35 49.8 U 807
2018-09-06 01:34:44 C 20 21 37.21 -31 35 42.9 U 807
2018-09-06 01:51:50 C 20 21 36.81 -31 35 36.2 U 807
2023-12-16 12:15:36 C 12 43 43.560 +03 46 53.60 V I52
2023-12-16 12:26:44 C 12 43 45.060 +03 46 39.00 V I52
2023-12-16 12:37:53 C 12 43 46.580 +03 46 25.40 V I52
2024-01-14 13:01:35 C 14 26 00.52 -12 44 29.9 V 291
2024-01-14 13:12:46 C 14 26 02.29 -12 44 46.2 V 291