2001 RA18

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5959237328 ± 7.87e-09
Semi-major axis (a)2.6000613537 AU ± 1.92e-09
Inclination (i)10.99850563° ± 2.38e-06
Long. of Asc. Node (Ω)179.63654998° ± 7.44e-06
Arg. of Perihelion (ω)205.86596005° ± 9.15e-06
Mean Anomaly (M)263.71411846° ± 1.56e-06
Mean Motion (n)0.2350914756°/day ± 2.61e-10
Perihelion dist (q)1.05062309 AU ± 2.05e-08
Aphelion dist (Q)4.14949962 AU ± 2.07e-08
Orbital Period4.19252242 yr ± 4.65e-09
Physical Parameters
H (abs. magnitude)19.37
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.277″
Uncertainty0
Orbit TypeAmor
MOID0.071961 AU
Observations Used332
Oppositions17
Arc Total2001-2023
First Observation Used2001-06-15
Last Observation Used2023-01-22
Observations (357)
Date Type RA Dec Mag Band Observatory
2001-12-24 05:22:00 C 03 44 02.78 -16 20 28.4 o 608
2002-01-03 13:04:26 C 04 07 42.85 -10 19 15.1 c 413
2002-01-03 13:06:45 C 04 07 42.99 -10 19 12.2 c 413
2002-01-03 13:09:07 C 04 07 43.21 -10 19 08.8 c 413
2018-11-09 05:45:19 C 09 27 47.50 +01 01 46.2 V J04
2018-11-09 05:50:45 C 09 27 47.79 +01 01 43.2 V J04
2018-11-09 05:56:11 C 09 27 48.11 +01 01 40.5 V J04
2018-11-09 11:45:53 C 09 28 08.08 +00 59 08.3 o 691
2018-11-09 12:01:06 C 09 28 08.89 +00 59 02.0 o 691
2018-11-09 12:16:20 C 09 28 09.77 +00 58 55.3 o 691
2018-11-10 11:14:36 C 09 29 26.99 +00 49 01.4 o 691
2018-11-10 11:29:55 C 09 29 27.75 +00 48 56.5 o 691
2018-11-10 11:45:14 C 09 29 28.65 +00 48 48.9 o 691
2018-11-11 05:42:56 C 09 30 27.661 +00 41 15.23 V Y28
2018-11-11 06:02:55 C 09 30 28.735 +00 41 06.73 V Y28
2019-01-13 11:49:36 C 09 33 23.061 -01 47 54.61 U F51
2019-01-13 12:06:57 C 09 33 22.215 -01 47 48.87 U F51
2019-01-13 12:24:16 C 09 33 21.341 -01 47 43.02 U F51
2019-01-13 12:41:40 C 09 33 20.459 -01 47 38.01 U F51
2022-07-01 06:02:26 C 20 31 30.70 +03 50 54.7 u H21
2022-07-01 06:15:43 C 20 31 30.55 +03 51 02.5 u H21
2022-07-18 00:09:50 C 20 25 25.749 +06 13 30.40 X B72
2022-07-18 00:19:31 C 20 25 25.440 +06 13 32.98 X B72
2022-07-18 00:29:13 C 20 25 25.200 +06 13 34.62 X B72
2022-07-19 06:37:50 C 20 24 36.07 +06 21 19.7 u H21
2022-07-19 06:41:51 C 20 24 35.94 +06 21 20.7 u H21
2022-07-19 06:45:36 C 20 24 35.82 +06 21 21.7 u H21
2022-07-19 06:49:21 C 20 24 35.70 +06 21 22.6 u H21
2022-07-19 06:52:29 C 20 24 35.60 +06 21 23.3 u H21
2022-07-19 06:55:59 C 20 24 35.50 +06 21 24.2 u H21
2022-07-21 22:25:09 C 20 22 42.57 +06 35 43.1 X C95
2022-07-21 22:50:37 C 20 22 41.59 +06 35 49.2 X C95
2022-08-06 20:36:43 C 20 07 28.606 +06 51 06.95 V A17
2022-08-06 20:53:38 C 20 07 27.749 +06 51 04.64 V A17
2022-08-06 21:10:35 C 20 07 26.904 +06 51 02.20 V A17
2022-08-07 03:37:50 C 20 07 09.22 +06 50 03.4 u H21
2022-08-07 03:43:07 C 20 07 08.93 +06 50 03.1 u H21
2022-08-07 03:44:52 C 20 07 08.83 +06 50 03.0 u H21
2022-08-07 03:45:54 C 20 07 08.78 +06 50 02.8 u H21
2022-08-07 03:49:02 C 20 07 08.60 +06 50 02.3 u H21
2022-08-21 19:02:15 C 19 51 07.906 +04 35 46.18 V M22
2022-08-21 19:04:51 C 19 51 07.800 +04 35 44.52 V M22
2022-08-21 19:09:24 C 19 51 07.558 +04 35 41.50 V M22
2022-08-21 20:14:19 C 19 51 04.493 +04 35 01.18 V M22
2022-08-22 20:04:11 C 19 50 05.722 +04 19 09.52 V K74
2022-08-22 20:28:40 C 19 50 04.630 +04 18 54.07 V K74
2022-08-22 20:53:09 C 19 50 03.523 +04 18 37.76 V K74
2022-08-24 20:36:24 C 19 48 10.805 +03 45 22.07 X K87
2022-08-24 20:42:44 C 19 48 10.548 +03 45 16.78 X K87
2022-08-24 20:49:04 C 19 48 10.289 +03 45 12.17 X K87