2018 NB

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5542284061 ± 6.19e-08
Semi-major axis (a)2.3903830772 AU ± 3.24e-07
Inclination (i)0.92506098° ± 8.64e-07
Long. of Asc. Node (Ω)131.31075455° ± 2.16e-05
Arg. of Perihelion (ω)186.66203553° ± 2.16e-05
Mean Anomaly (M)350.77390867° ± 1.47e-04
Mean Motion (n)0.2666926322°/day ± 5.42e-08
Perihelion dist (q)1.06556487 AU ± 2.07e-07
Aphelion dist (Q)3.71520128 AU ± 5.25e-07
Orbital Period3.69573871 yr ± 7.52e-07
Physical Parameters
H (abs. magnitude)19.37
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.229″
Uncertainty0
Orbit TypeAmor
MOID0.050106 AU
Observations Used600
Radar Obs Used1
Oppositions1
Arc Total2018-2018
First Observation Used2018-04-12
Last Observation Used2018-12-14
Observations (642)
Date Type RA Dec Mag Band Observatory
2018-07-03 03:20:15 C 19 42 42.89 -17 19 03.4 q Y00
2018-07-03 03:26:54 C 19 42 44.51 -17 18 59.6 q Y00
2018-07-03 06:04:44 C 19 43 26.52 -17 18 18.9 u H21
2018-07-03 06:07:35 C 19 43 27.24 -17 18 17.0 u H21
2018-07-03 06:10:27 C 19 43 27.96 -17 18 15.3 u H21
2018-07-03 06:13:18 C 19 43 28.66 -17 18 13.4 u H21
2018-07-03 06:16:09 C 19 43 29.39 -17 18 11.8 u H21
2018-07-03 06:16:39 C 19 43 30.01 -17 18 10.6 U H36
2018-07-03 06:18:52 C 19 43 30.56 -17 18 09.2 U H36
2018-07-03 06:19:00 C 19 43 30.10 -17 18 09.7 u H21
2018-07-03 06:21:05 C 19 43 31.11 -17 18 07.7 U H36
2018-07-03 06:21:51 C 19 43 30.81 -17 18 08.0 u H21
2018-07-03 06:25:00 C 19 43 31.59 -17 18 06.0 u H21
2018-07-03 10:56:10 C 19 44 45.96 -17 13 34.9 q R58
2018-07-03 11:31:08 C 19 44 54.89 -17 13 12.9 q R58
2018-07-03 13:18:46 C 19 45 23.89 -17 12 15.6 q E23
2018-07-03 13:23:46 C 19 45 25.15 -17 12 12.4 q E23
2018-07-03 13:29:02 C 19 45 26.49 -17 12 09.0 q E23
2018-07-03 13:33:47 C 19 45 27.70 -17 12 06.0 q E23
2018-07-03 13:38:47 C 19 45 28.97 -17 12 02.8 q E23
2018-07-03 13:43:46 C 19 45 30.24 -17 11 59.6 q E23
2018-07-04 23:22:55 C 19 54 58.67 -16 49 16.9 U 108
2018-07-04 23:25:10 C 19 54 59.31 -16 49 15.1 U 108
2018-07-04 23:28:35 C 19 55 00.25 -16 49 12.5 U 108
2018-07-04 23:29:43 C 19 55 00.56 -16 49 11.5 U 108
2018-07-05 08:59:21 C 19 57 47.83 -16 41 38.9 U I52
2018-07-05 08:59:33 C 19 57 47.89 -16 41 38.5 U I52
2018-07-05 09:02:22 C 19 57 48.68 -16 41 36.6 U I52
2018-07-05 09:05:11 C 19 57 49.43 -16 41 34.0 U I52
2018-07-05 13:34:25 C 19 59 12.85 -16 36 38.7 q Q67
2018-07-05 13:34:58 C 19 59 13.04 -16 36 38.4 q Q67
2018-07-07 00:28:46 C 20 10 10.35 -16 07 40.7 V 204
2018-07-07 00:30:04 C 20 10 10.77 -16 07 39.1 V 204
2018-07-07 00:31:24 C 20 10 11.15 -16 07 38.4 V 204
2018-07-07 00:32:42 C 20 10 11.60 -16 07 37.5 V 204
2018-07-07 00:34:00 C 20 10 11.99 -16 07 36.2 V 204
2018-07-07 13:03:32 C 20 14 18.69 -15 55 12.2 U T05
2018-07-07 13:18:51 C 20 14 23.52 -15 54 56.6 U T05
2018-07-07 13:33:32 C 20 14 28.15 -15 54 41.4 U T05
2018-07-07 13:48:57 C 20 14 33.07 -15 54 25.6 U T05
2018-07-07 22:35:22 C 20 17 36.76 -15 46 02.7 q C23
2018-07-07 22:37:05 C 20 17 37.34 -15 46 01.6 q C23
2018-07-07 22:40:02 C 20 17 38.28 -15 45 57.8 q C23
2018-07-07 22:43:01 C 20 17 39.33 -15 45 54.6 q C23
2018-07-07 22:45:59 C 20 17 40.27 -15 45 52.0 q C23
2018-07-08 03:28:49 C 20 19 14.59 -15 40 43.2 V G40
2018-07-08 03:31:38 C 20 19 15.51 -15 40 40.0 V G40
2018-07-08 03:33:42 C 20 19 16.20 -15 40 37.7 V G40
2018-07-08 03:35:04 C 20 19 16.65 -15 40 36.5 V G40
2018-07-08 03:36:31 C 20 19 17.11 -15 40 34.9 V G40
Radar Observations (1)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2018-08-01 08:40:00 97588570 4 us 2380 -1 -1
Station codes
-1 Arecibo (305-m, 1963–2020)