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
2018-09-21 14:22:45 C 02 30 59.75 +11 06 05.9 U T05
2018-09-21 14:38:10 C 02 30 59.17 +11 06 03.3 U T05
2018-09-22 13:41:45 C 02 30 20.23 +11 02 37.3 U T05
2018-09-22 14:12:43 C 02 30 18.84 +11 02 33.4 U T05
2018-09-22 14:26:02 C 02 30 18.35 +11 02 31.3 U T05
2018-09-22 14:41:00 C 02 30 17.79 +11 02 28.8 U T05
2018-09-24 12:19:39 C 02 28 52.38 +10 55 16.0 U T08
2018-09-24 12:29:43 C 02 28 51.90 +10 55 14.8 U T08
2018-09-24 12:49:39 C 02 28 51.02 +10 55 10.8 U T08
2018-09-24 12:50:18 C 02 28 51.00 +10 55 11.5 U T08
2018-09-29 05:40:22 C 02 24 38.36 +10 35 07.3 u H21
2018-09-29 05:44:23 C 02 24 38.16 +10 35 06.5 u H21
2018-09-29 05:49:23 C 02 24 37.93 +10 35 05.4 u H21
2018-09-30 08:28:01 C 02 23 30.13 +10 30 04.3 u H21
2018-09-30 08:31:26 C 02 23 29.97 +10 30 03.7 u H21
2018-09-30 08:36:05 C 02 23 29.74 +10 30 02.8 u H21
2018-09-30 08:42:17 C 02 23 29.44 +10 30 01.5 u H21
2018-09-30 08:48:48 C 02 23 29.11 +10 30 00.2 u H21
2018-09-30 13:00:14 C 02 23 18.51 +10 29 21.7 U T05
2018-09-30 13:22:55 C 02 23 17.36 +10 29 16.9 U T05
2018-09-30 13:23:35 C 02 23 17.34 +10 29 17.1 U T05
2018-09-30 13:27:58 C 02 23 17.11 +10 29 16.3 U T05
2018-09-30 13:29:29 C 02 23 17.02 +10 29 16.0 U T05
2018-09-30 13:50:24 C 02 23 15.99 +10 29 11.7 U T05
2018-10-01 08:20:57 C 02 22 28.56 +10 25 29.3 u H21
2018-10-01 08:26:45 C 02 22 28.27 +10 25 28.2 u H21
2018-10-01 08:36:27 C 02 22 27.79 +10 25 26.0 u H21
2018-10-02 12:57:30 C 02 21 12.59 +10 20 04.6 U T08
2018-10-02 13:02:52 C 02 21 12.37 +10 20 02.3 U T08
2018-10-02 13:27:36 C 02 21 11.05 +10 19 57.7 U T08
2018-10-02 13:34:48 C 02 21 10.67 +10 19 56.2 U T08
2018-10-03 01:47:12 C 02 20 38.59 +10 17 27.3 18.2 u J43
2018-10-03 01:59:51 C 02 20 37.92 +10 17 24.9 18.1 u J43
2018-10-03 02:12:23 C 02 20 37.27 +10 17 22.4 18.1 u J43
2018-10-03 02:24:54 C 02 20 36.61 +10 17 19.9 18.1 u J43
2018-10-03 12:53:03 C 02 20 07.77 +10 15 20.2 U T05
2018-10-03 13:08:30 C 02 20 06.94 +10 15 17.0 U T05
2018-10-03 13:10:29 C 02 20 06.84 +10 15 17.0 U T05
2018-10-03 13:22:59 C 02 20 06.18 +10 15 13.9 U T05
2018-10-03 13:25:03 C 02 20 06.08 +10 15 14.0 U T05
2018-10-03 13:37:24 C 02 20 05.41 +10 15 11.1 U T05
2018-10-03 13:39:32 C 02 20 05.32 +10 15 10.8 U T05
2018-10-03 13:53:57 C 02 20 04.53 +10 15 07.7 U T05
2018-10-04 00:26:10 C 02 19 36.59 +10 12 52.5 q 160
2018-10-04 00:29:48 C 02 19 36.40 +10 12 52.5 q 160
2018-10-04 00:33:29 C 02 19 36.19 +10 12 51.5 q 160
2018-10-04 13:19:34 C 02 19 00.07 +10 10 28.0 U T05
2018-10-04 13:25:55 C 02 18 59.73 +10 10 27.3 U T05
2018-10-04 13:47:30 C 02 18 58.58 +10 10 22.1 U T05
2018-10-04 13:55:23 C 02 18 58.18 +10 10 20.9 U T05
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)