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
2018-07-13 07:56:50 C 21 08 06.67 -12 55 02.1 u H21
2018-07-13 07:58:53 C 21 08 07.53 -12 54 58.7 u H21
2018-07-13 08:00:56 C 21 08 08.38 -12 54 55.2 u H21
2018-07-13 08:04:00 C 21 08 09.65 -12 54 50.2 u H21
2018-07-13 11:17:50 C 21 09 36.439 -12 49 07.04 U F52
2018-07-13 12:00:44 C 21 09 54.179 -12 47 55.99 U F52
2018-07-13 13:24:09 C 21 10 28.64 -12 45 33.9 U T08
2018-07-13 13:39:44 C 21 10 35.12 -12 45 07.4 U T08
2018-07-13 13:55:22 C 21 10 41.63 -12 44 40.6 U T08
2018-07-13 14:11:00 C 21 10 48.17 -12 44 13.8 U T08
2018-07-15 05:22:08 C 21 28 34.37 -11 33 24.3 r Y00
2018-07-15 05:23:39 C 21 28 35.15 -11 33 22.5 r Y00
2018-07-15 05:26:03 C 21 28 36.15 -11 33 17.6 r Y00
2018-07-15 23:08:46 C 21 36 55.48 -11 00 49.6 q 089
2018-07-15 23:23:45 C 21 37 02.28 -11 00 19.7 q 089
2018-07-15 23:27:07 C 21 37 03.78 -11 00 13.5 q 089
2018-07-15 23:38:41 C 21 37 09.03 -10 59 50.8 q 089
2018-07-16 01:01:13 C 21 37 46.48 -10 57 07.7 q 089
2018-07-16 01:17:30 C 21 37 53.91 -10 56 34.4 q 089
2018-07-16 23:13:28 C 21 48 25.92 -10 12 03.8 q 089
2018-07-16 23:16:49 C 21 48 27.50 -10 11 57.2 q 089
2018-07-16 23:20:10 C 21 48 29.03 -10 11 50.0 q 089
2018-07-16 23:23:31 C 21 48 30.59 -10 11 42.9 q 089
2018-07-16 23:26:52 C 21 48 32.13 -10 11 36.0 q 089
2018-07-16 23:30:13 C 21 48 33.68 -10 11 28.8 q 089
2018-07-16 23:33:34 C 21 48 35.25 -10 11 22.2 q 089
2018-07-16 23:36:55 C 21 48 36.78 -10 11 15.2 q 089
2018-07-16 23:40:16 C 21 48 38.34 -10 11 08.3 q 089
2018-07-16 23:43:37 C 21 48 39.88 -10 11 01.5 q 089
2018-07-17 13:23:54 C 21 55 16.33 -09 41 33.4 U T08
2018-07-17 13:39:26 C 21 55 23.49 -09 41 00.0 U T08
2018-07-17 13:54:14 C 21 55 30.31 -09 40 27.9 U T08
2018-07-17 14:10:02 C 21 55 37.61 -09 39 53.6 U T08
2018-07-18 00:10:09 C 22 00 35.49 -09 18 48.1 c A53
2018-07-18 00:15:48 C 22 00 38.15 -09 18 36.0 c A53
2018-07-18 00:18:43 C 22 00 39.50 -09 18 29.9 c A53
2018-07-18 00:21:36 C 22 00 40.88 -09 18 23.5 c A53
2018-07-18 00:27:31 C 22 00 43.69 -09 18 11.0 c A53
2018-07-18 07:13:40 C 22 03 58.89 -09 01 33.7 r Y00
2018-07-18 07:16:10 C 22 04 00.06 -09 01 29.7 r Y00
2018-07-18 07:18:34 C 22 04 01.23 -09 01 24.5 r Y00
2018-07-18 08:16:54 C 22 04 32.96 -09 00 52.8 V H21
2018-07-18 08:20:12 C 22 04 34.51 -09 00 45.6 V H21
2018-07-18 08:23:31 C 22 04 36.07 -09 00 38.1 V H21
2018-07-18 08:26:48 C 22 04 37.61 -09 00 30.9 V H21
2018-07-18 08:30:05 C 22 04 39.15 -09 00 23.6 V H21
2018-07-18 08:33:22 C 22 04 40.69 -09 00 16.3 V H21
2018-07-18 08:37:16 C 22 04 42.52 -09 00 07.7 V H21
2018-07-19 00:04:24 C 22 12 21.51 -08 25 37.8 q 089
2018-07-19 00:07:46 C 22 12 23.10 -08 25 30.3 q 089
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)