IAA RAS IAA Minor Planet Database

354030 (2001 RB18)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5389012936 ± 1.02e-09
Semi-major axis (a)2.3488749058 AU ± 2.81e-10
Inclination (i)4.17829459° ± 6.19e-07
Long. of Asc. Node (Ω)198.24942951° ± 3.86e-06
Arg. of Perihelion (ω)175.35074491° ± 4.31e-06
Mean Anomaly (M)253.13460727° ± 7.78e-07
Mean Motion (n)0.2737930653°/day ± 4.91e-11
Perihelion dist (q)1.08306318 AU ± 2.40e-09
Aphelion dist (Q)3.61468663 AU ± 2.44e-09
Orbital Period3.59989499 yr ± 6.46e-10
Physical Parameters
H (abs. magnitude)18.61
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.238″
Uncertainty0
Orbit TypeAmor
MOID0.081944 AU
Observations Used1245
Radar Obs Used3
Oppositions13
Arc Total2001-2019
First Observation Used2001-07-13
Last Observation Used2024-02-14
Observations (1342)
Date Type RA Dec Mag Band Observatory
2019-10-09 01:21:30 C 03 06 13.50 +17 32 18.6 – q 160
2019-10-09 10:20:25 C 03 08 58.94 +17 24 12.8 – V T08
2019-10-09 10:26:05 C 03 09 00.52 +17 24 07.6 – V T08
2019-10-09 10:35:37 C 03 09 03.15 +17 23 58.8 – V T08
2019-10-09 10:54:39 C 03 09 08.41 +17 23 41.3 – V T08
2019-10-09 22:44:22 C 03 12 36.70 +17 11 38.4 – V 094
2019-10-09 22:47:47 C 03 12 37.64 +17 11 35.1 – V 094
2019-10-09 22:58:08 C 03 12 40.47 +17 11 25.4 – V 094
2019-10-11 01:37:06 C 03 20 12.09 +16 45 16.4 – q 160
2019-10-11 01:39:41 C 03 20 12.75 +16 45 13.8 – q 160
2019-10-11 01:42:20 C 03 20 13.43 +16 45 11.2 – q 160
2019-10-11 02:52:26 C 03 20 30.08 +16 43 55.6 – V 094
2019-10-11 02:53:31 C 03 20 30.39 +16 43 54.6 – V 094
2019-10-11 02:56:43 C 03 20 31.21 +16 43 51.4 – V 094
2019-10-11 02:57:47 C 03 20 31.51 +16 43 50.2 – V 094
2019-10-12 01:31:21 C 03 26 36.73 +16 21 35.2 – q 160
2019-10-12 01:34:21 C 03 26 37.46 +16 21 32.2 – q 160
2019-10-12 01:37:17 C 03 26 38.17 +16 21 29.3 – q 160
2019-10-12 02:26:19 C 03 26 48.66 +16 20 35.8 – V 094
2019-10-12 02:27:23 C 03 26 48.92 +16 20 34.8 – V 094
2019-10-12 02:30:35 C 03 26 49.70 +16 20 31.5 – V 094
2019-10-12 02:31:39 C 03 26 49.97 +16 20 30.3 – V 094
2019-10-12 21:56:15 C 03 31 51.16 +16 01 16.2 – V 094
2019-10-12 21:57:19 C 03 31 51.41 +16 01 15.2 – V 094
2019-10-12 22:00:33 C 03 31 52.17 +16 01 12.1 – V 094
2019-10-12 22:01:37 C 03 31 52.43 +16 01 11.1 – V 094
2019-10-13 11:10:48 C 03 35 05.79 +15 48 43.1 – V T08
2019-10-13 11:15:33 C 03 35 06.83 +15 48 38.6 – V T08
2019-10-13 11:30:46 C 03 35 10.16 +15 48 24.0 – V T08
2019-10-13 11:47:29 C 03 35 13.83 +15 48 07.7 – V T08
2019-10-13 23:01:43 C 03 37 54.08 +15 36 28.9 – V 094
2019-10-13 23:02:54 C 03 37 54.30 +15 36 27.9 – V 094
2019-10-13 23:06:06 C 03 37 55.02 +15 36 24.7 – V 094
2019-10-13 23:07:10 C 03 37 55.25 +15 36 23.7 – V 094
2019-10-15 07:07:38 C 03 45 08.56 +15 05 12.3 – u H21
2019-10-15 07:09:36 C 03 45 08.96 +15 05 10.4 – u H21
2019-10-15 07:11:34 C 03 45 09.34 +15 05 08.6 – u H21
2019-10-15 07:13:31 C 03 45 09.72 +15 05 06.8 – u H21
2019-10-15 07:15:29 C 03 45 10.12 +15 05 04.7 – u H21
2019-10-15 07:17:26 C 03 45 10.51 +15 05 02.9 – u H21
2019-10-15 07:19:24 C 03 45 10.90 +15 05 01.1 – u H21
2019-10-15 07:21:21 C 03 45 11.29 +15 04 59.2 – u H21
2019-10-15 07:23:19 C 03 45 11.68 +15 04 57.3 – u H21
2019-10-15 07:25:17 C 03 45 12.08 +15 04 55.6 – u H21
2019-10-15 07:27:38 C 03 45 12.54 +15 04 53.1 – u H21
2019-10-17 23:07:57 C 03 57 55.49 +14 04 33.7 – V 089
2019-10-17 23:11:21 C 03 57 56.06 +14 04 30.6 – V 089
2019-10-17 23:14:44 C 03 57 56.63 +14 04 27.6 – V 089
2019-10-17 23:18:07 C 03 57 57.22 +14 04 24.5 – V 089
2019-10-17 23:21:30 C 03 57 57.77 +14 04 21.6 – V 089
Radar Observations (3)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2019-09-27 05:45:00 92725178.62 4 us 2380 -1 -1
2019-09-27 05:56:00 92722930.43 4 us 2380 -1 -1
2019-09-28 06:30:00 92496216.2 1 us 2380 -1 -1
Station codes
-1 Arecibo (305-m, 1963–2020)