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
2018-08-28 02:47:29 C 02 24 40.36 +11 09 50.6 q 160
2018-08-28 02:50:39 C 02 24 40.51 +11 09 51.7 q 160
2018-08-28 02:53:48 C 02 24 40.64 +11 09 52.3 q 160
2018-08-30 14:28:01 C 02 27 56.47 +11 19 52.3 U T08
2018-08-30 14:43:06 C 02 27 57.02 +11 19 54.8 U T08
2018-08-30 14:57:48 C 02 27 57.46 +11 19 56.5 U T08
2018-08-30 15:12:17 C 02 27 58.02 +11 19 58.5 U T08
2018-09-01 09:06:11 C 02 29 50.99 +11 24 45.9 u H21
2018-09-01 09:08:50 C 02 29 51.08 +11 24 46.3 u H21
2018-09-01 09:15:13 C 02 29 51.25 +11 24 47.0 u H21
2018-09-03 09:15:56 C 02 31 34.69 +11 28 56.8 u H21
2018-09-03 09:19:17 C 02 31 34.76 +11 28 57.1 u H21
2018-09-03 09:22:28 C 02 31 34.83 +11 28 57.3 u H21
2018-09-03 09:26:40 C 02 31 34.92 +11 28 57.6 u H21
2018-09-06 02:42:25 C 02 33 15.84 +11 31 59.3 q 160
2018-09-06 02:46:30 C 02 33 15.89 +11 31 59.4 q 160
2018-09-06 02:50:21 C 02 33 15.93 +11 31 59.7 q 160
2018-09-11 14:34:03 C 02 34 32.45 +11 30 29.2 U T08
2018-09-11 14:49:39 C 02 34 32.29 +11 30 28.4 U T08
2018-09-11 15:04:29 C 02 34 32.12 +11 30 27.0 U T08
2018-09-11 15:19:56 C 02 34 31.96 +11 30 26.2 U T08
2018-09-14 14:18:08 C 02 34 11.65 +11 25 39.7 U T05
2018-09-14 14:22:46 C 02 34 11.55 +11 25 39.4 U T05
2018-09-14 14:55:45 C 02 34 10.89 +11 25 36.5 U T05
2018-09-14 15:05:48 C 02 34 10.71 +11 25 35.5 U T05
2018-09-15 13:57:38 C 02 33 56.23 +11 23 34.7 U T08
2018-09-15 14:12:27 C 02 33 55.90 +11 23 33.4 U T08
2018-09-15 14:27:09 C 02 33 55.58 +11 23 31.7 U T08
2018-09-15 14:41:47 C 02 33 55.25 +11 23 30.4 U T08
2018-09-16 13:52:39 C 02 33 36.44 +11 21 13.8 U T08
2018-09-16 13:57:01 C 02 33 36.34 +11 21 12.6 U T08
2018-09-16 14:21:59 C 02 33 35.71 +11 21 10.1 U T08
2018-09-16 14:29:41 C 02 33 35.52 +11 21 09.0 U T08
2018-09-17 13:56:55 C 02 33 12.52 +11 18 36.4 U T05
2018-09-17 14:26:01 C 02 33 11.70 +11 18 32.8 U T05
2018-09-17 14:40:32 C 02 33 11.31 +11 18 31.2 U T05
2018-09-18 13:59:51 C 02 32 44.76 +11 15 47.1 U T05
2018-09-18 14:03:59 C 02 32 44.64 +11 15 46.8 U T05
2018-09-18 14:28:49 C 02 32 43.89 +11 15 43.3 U T05
2018-09-18 14:41:41 C 02 32 43.51 +11 15 41.5 U T05
2018-09-19 13:52:33 C 02 32 13.68 +11 12 47.5 U T08
2018-09-19 14:07:13 C 02 32 13.17 +11 12 45.4 U T08
2018-09-19 14:21:52 C 02 32 12.71 +11 12 43.7 U T08
2018-09-19 14:36:27 C 02 32 12.25 +11 12 41.7 U T08
2018-09-21 08:39:27 C 02 31 10.75 +11 06 48.1 U I41
2018-09-21 08:51:19 C 02 31 10.33 +11 06 46.5 U I41
2018-09-21 10:26:31 C 02 31 06.95 +11 06 33.2 U I41
2018-09-21 10:29:10 C 02 31 06.86 +11 06 32.8 U I41
2018-09-21 13:52:46 C 02 31 00.84 +11 06 10.4 U T05
2018-09-21 14:07:35 C 02 31 00.30 +11 06 08.4 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)