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
2018-07-08 03:51:14 C 20 19 21.94 -15 40 18.9 V G40
2018-07-08 03:53:47 C 20 19 22.75 -15 40 16.4 V G40
2018-07-08 03:56:37 C 20 19 23.70 -15 40 13.3 V G40
2018-07-09 01:15:46 C 20 27 03.62 -15 15 49.3 r Y00
2018-07-09 01:17:04 C 20 27 04.17 -15 15 47.4 r Y00
2018-07-09 01:18:28 C 20 27 04.57 -15 15 46.3 r Y00
2018-07-09 01:22:50 C 20 27 01.57 -15 17 09.2 U K87
2018-07-09 01:24:53 C 20 27 02.29 -15 17 06.7 U K87
2018-07-09 01:27:30 C 20 27 03.19 -15 17 03.8 U K87
2018-07-09 21:25:46 C 20 34 30.57 -14 53 22.9 U G34
2018-07-09 21:28:47 C 20 34 31.73 -14 53 19.7 U G34
2018-07-09 21:33:16 C 20 34 33.35 -14 53 14.5 U G34
2018-07-11 07:42:24 C 20 47 50.73 -14 08 20.6 u H21
2018-07-11 07:44:28 C 20 47 51.52 -14 08 17.8 u H21
2018-07-11 07:46:32 C 20 47 52.31 -14 08 14.9 u H21
2018-07-11 07:48:37 C 20 47 53.11 -14 08 11.9 u H21
2018-07-11 07:50:41 C 20 47 53.90 -14 08 09.0 u H21
2018-07-11 07:52:45 C 20 47 54.69 -14 08 06.1 u H21
2018-07-11 07:55:02 C 20 47 55.56 -14 08 02.8 u H21
2018-07-11 07:57:06 C 20 47 56.36 -14 08 00.0 u H21
2018-07-11 07:59:10 C 20 47 57.15 -14 07 57.1 u H21
2018-07-11 08:01:14 C 20 47 57.94 -14 07 54.2 u H21
2018-07-11 08:03:18 C 20 47 58.73 -14 07 51.3 u H21
2018-07-11 08:05:22 C 20 47 59.53 -14 07 48.3 u H21
2018-07-11 08:08:03 C 20 48 00.56 -14 07 44.5 u H21
2018-07-11 08:10:06 C 20 48 01.34 -14 07 41.6 u H21
2018-07-11 08:12:09 C 20 48 02.13 -14 07 38.7 u H21
2018-07-11 08:14:12 C 20 48 02.92 -14 07 35.9 u H21
2018-07-11 08:17:17 C 20 48 04.09 -14 07 31.7 u H21
2018-07-11 13:31:27 C 20 50 10.30 -13 59 46.0 U T05
2018-07-11 13:46:56 C 20 50 16.26 -13 59 23.2 U T05
2018-07-11 14:02:28 C 20 50 22.25 -13 59 00.5 U T05
2018-07-11 14:18:00 C 20 50 28.25 -13 58 37.5 U T05
2018-07-11 23:05:10 C 20 54 08.61 -13 46 23.0 q 089
2018-07-11 23:19:15 C 20 54 14.17 -13 46 02.8 q 089
2018-07-11 23:22:36 C 20 54 15.51 -13 45 57.2 q 089
2018-07-11 23:25:57 C 20 54 16.79 -13 45 52.4 q 089
2018-07-11 23:29:18 C 20 54 18.15 -13 45 47.5 q 089
2018-07-11 23:32:39 C 20 54 19.49 -13 45 42.6 q 089
2018-07-12 16:29:57 C 21 01 27.60 -13 19 44.6 o P93
2018-07-12 16:43:54 C 21 01 33.23 -13 19 22.9 o P93
2018-07-12 16:46:24 C 21 01 34.23 -13 19 18.9 o P93
2018-07-12 16:48:51 C 21 01 35.23 -13 19 15.1 o P93
2018-07-13 07:42:26 C 21 08 00.69 -12 55 25.7 u H21
2018-07-13 07:44:31 C 21 08 01.55 -12 55 22.4 u H21
2018-07-13 07:46:35 C 21 08 02.41 -12 55 18.9 u H21
2018-07-13 07:48:38 C 21 08 03.27 -12 55 15.7 u H21
2018-07-13 07:50:41 C 21 08 04.12 -12 55 12.3 u H21
2018-07-13 07:52:44 C 21 08 04.96 -12 55 08.9 u H21
2018-07-13 07:54:47 C 21 08 05.83 -12 55 05.5 u H21
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)