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
2018-08-13 02:08:18 C 01 44 57.76 +08 41 29.4 q 160
2018-08-13 02:11:11 C 01 44 58.22 +08 41 31.2 q 160
2018-08-13 02:14:07 C 01 44 58.69 +08 41 33.5 q 160
2018-08-13 23:48:55 C 01 48 36.57 +08 56 27.3 U 089
2018-08-13 23:56:53 C 01 48 37.84 +08 56 32.8 U 089
2018-08-14 00:00:15 C 01 48 38.33 +08 56 35.9 U 089
2018-08-14 00:03:36 C 01 48 38.81 +08 56 37.7 U 089
2018-08-14 00:11:44 C 01 48 40.03 +08 56 43.7 U 089
2018-08-14 00:15:06 C 01 48 40.58 +08 56 45.2 U 089
2018-08-14 00:18:27 C 01 48 41.10 +08 56 47.5 U 089
2018-08-15 20:09:24 C 01 55 26.87 +09 23 53.0 q 168
2018-08-15 20:13:45 C 01 55 27.49 +09 23 56.3 q 168
2018-08-15 21:55:45 C 01 55 41.58 +09 24 56.6 q 168
2018-08-15 22:01:45 C 01 55 42.41 +09 25 00.6 q 168
2018-08-16 02:04:27 C 01 56 17.19 +09 27 30.4 q 160
2018-08-16 02:07:24 C 01 56 17.58 +09 27 32.2 q 160
2018-08-16 02:10:33 C 01 56 17.98 +09 27 34.3 q 160
2018-08-17 03:03:21 C 01 59 43.97 +09 41 05.6 q 160
2018-08-17 03:06:23 C 01 59 44.34 +09 41 06.9 q 160
2018-08-17 03:09:20 C 01 59 44.69 +09 41 08.5 q 160
2018-08-17 19:59:10 C 02 01 58.65 +09 49 25.6 q 168
2018-08-17 20:05:10 C 02 01 59.39 +09 49 28.3 q 168
2018-08-17 22:07:20 C 02 02 14.19 +09 50 30.6 q 168
2018-08-17 22:13:20 C 02 02 14.88 +09 50 33.7 q 168
2018-08-18 00:22:38 C 02 02 32.22 +09 51 40.5 q C23
2018-08-18 00:28:02 C 02 02 32.87 +09 51 42.7 q C23
2018-08-18 00:32:20 C 02 02 33.42 +09 51 44.2 q C23
2018-08-18 02:22:59 C 02 02 46.25 +09 52 46.1 q 160
2018-08-18 02:26:11 C 02 02 46.61 +09 52 47.8 q 160
2018-08-18 02:29:26 C 02 02 46.99 +09 52 49.3 q 160
2018-08-19 03:11:38 C 02 05 46.84 +10 04 14.3 q 160
2018-08-19 03:14:46 C 02 05 47.17 +10 04 15.0 q 160
2018-08-19 03:17:54 C 02 05 47.48 +10 04 16.5 q 160
2018-08-19 20:07:48 C 02 07 45.36 +10 11 16.2 q 168
2018-08-19 20:11:48 C 02 07 45.81 +10 11 17.7 q 168
2018-08-19 21:41:55 C 02 07 55.34 +10 11 57.1 q 168
2018-08-19 21:49:55 C 02 07 56.18 +10 12 00.5 q 168
2018-08-19 22:30:09 C 02 08 00.37 +10 12 17.8 q 168
2018-08-21 02:30:15 C 02 11 00.63 +10 23 29.5 q 160
2018-08-21 02:33:22 C 02 11 00.91 +10 23 30.5 q 160
2018-08-21 02:36:29 C 02 11 01.19 +10 23 31.8 q 160
2018-08-22 00:24:27 C 02 13 13.38 +10 31 14.4 q C23
2018-08-22 00:26:03 C 02 13 13.53 +10 31 14.8 q C23
2018-08-22 00:28:13 C 02 13 13.75 +10 31 15.0 q C23
2018-08-22 00:32:31 C 02 13 14.14 +10 31 17.8 q C23
2018-08-22 00:34:41 C 02 13 14.31 +10 31 18.3 q C23
2018-08-22 00:36:50 C 02 13 14.52 +10 31 18.7 q C23
2018-08-23 19:16:49 C 02 17 07.04 +10 45 12.7 q D29
2018-08-23 19:37:09 C 02 17 08.51 +10 45 18.9 q D29
2018-08-23 19:57:30 C 02 17 09.97 +10 45 24.9 q D29
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)