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
2018-04-12 13:08:38 C 16 56 18.415 -20 50 56.04 V F51
2018-04-12 13:24:33 C 16 56 19.306 -20 50 56.71 V F51
2018-04-12 13:56:22 C 16 56 21.072 -20 50 58.18 V F51
2018-07-01 12:49:55 C 19 32 56.70 -17 42 34.8 U T08
2018-07-01 13:05:07 C 19 33 00.10 -17 42 26.1 U T08
2018-07-01 13:19:31 C 19 33 03.35 -17 42 17.4 U T08
2018-07-01 13:34:43 C 19 33 06.78 -17 42 08.7 U T08
2018-07-01 22:39:10 C 19 35 23.86 -17 37 24.2 q C95
2018-07-01 22:46:11 C 19 35 25.51 -17 37 19.5 q C95
2018-07-01 22:50:02 C 19 35 26.37 -17 37 18.0 q C95
2018-07-01 22:50:51 C 19 35 26.61 -17 37 16.8 q C95
2018-07-01 22:53:06 C 19 35 27.08 -17 37 15.8 q C95
2018-07-01 22:55:54 C 19 35 27.80 -17 37 14.4 q C95
2018-07-01 22:56:37 C 19 35 28.03 -17 37 14.2 q C95
2018-07-01 22:57:39 C 19 35 27.93 -17 37 14.4 U 160
2018-07-01 23:03:57 C 19 35 29.37 -17 37 10.9 U 160
2018-07-01 23:32:58 C 19 35 39.47 -17 35 42.7 q Y00
2018-07-01 23:34:24 C 19 35 39.83 -17 35 42.4 q Y00
2018-07-01 23:36:19 C 19 35 40.30 -17 35 40.9 q Y00
2018-07-01 23:37:14 C 19 35 40.53 -17 35 40.2 q Y00
2018-07-01 23:37:46 C 19 35 40.62 -17 35 40.3 q Y00
2018-07-01 23:41:44 C 19 35 41.59 -17 35 37.7 q Y00
2018-07-01 23:43:35 C 19 35 42.04 -17 35 37.1 q Y00
2018-07-01 23:44:32 C 19 35 42.26 -17 35 36.5 q Y00
2018-07-01 23:45:04 C 19 35 42.38 -17 35 36.3 q Y00
2018-07-01 23:49:01 C 19 35 43.38 -17 35 34.6 q Y00
2018-07-01 23:50:53 C 19 35 43.79 -17 35 33.7 q Y00
2018-07-01 23:51:57 C 19 35 44.04 -17 35 32.6 q Y00
2018-07-02 00:52:55 C 19 35 54.62 -17 36 12.9 V K80
2018-07-02 00:53:12 C 19 35 56.78 -17 35 57.8 q J22
2018-07-02 00:54:07 C 19 35 59.09 -17 34 59.7 q X74
2018-07-02 00:58:11 C 19 35 55.88 -17 36 09.7 V K80
2018-07-02 00:58:58 C 19 35 58.11 -17 35 54.5 q J22
2018-07-02 01:01:49 C 19 36 00.90 -17 34 55.3 q X74
2018-07-02 01:04:45 C 19 35 59.43 -17 35 51.3 q J22
2018-07-02 01:09:34 C 19 36 02.72 -17 34 51.2 q X74
2018-07-02 02:45:24 C 19 36 22.65 -17 34 53.4 V G40
2018-07-02 02:46:52 C 19 36 23.00 -17 34 52.6 V G40
2018-07-02 07:31:57 C 19 37 36.16 -17 32 15.1 15.5 r 718
2018-07-02 07:33:16 C 19 37 36.49 -17 32 14.3 15.3 r 718
2018-07-02 07:35:54 C 19 37 37.14 -17 32 13.0 15.4 r 718
2018-07-02 09:14:25 C 19 38 00.27 -17 31 08.5 U I52
2018-07-02 09:15:01 C 19 38 00.41 -17 31 08.1 U I52
2018-07-02 09:15:37 C 19 38 00.54 -17 31 07.8 U I52
2018-07-02 09:16:12 C 19 38 00.69 -17 31 07.5 U I52
2018-07-02 10:02:00 C 19 38 17.13 -17 29 21.2 q E08
2018-07-02 10:05:27 C 19 38 17.97 -17 29 19.3 q E08
2018-07-02 10:08:55 C 19 38 18.85 -17 29 17.5 q E08
2018-07-02 15:12:41 C 19 39 32.38 -17 26 26.0 16.2 q Q62
2018-07-02 15:18:31 C 19 39 33.81 -17 26 22.3 16.4 q Q62
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)