27031 (1998 RO4)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4263352489 ± 1.08e-08
Semi-major axis (a)2.1382953708 AU ± 5.86e-10
Inclination (i)5.35636020° ± 9.58e-07
Long. of Asc. Node (Ω)191.76085314° ± 9.41e-06
Arg. of Perihelion (ω)111.91346324° ± 1.02e-05
Mean Anomaly (M)268.64042015° ± 1.21e-06
Mean Motion (n)0.3152177992°/day ± 1.30e-10
Perihelion dist (q)1.22666468 AU ± 2.31e-08
Aphelion dist (Q)3.04992606 AU ± 2.31e-08
Orbital Period3.12681037 yr ± 1.28e-09
Physical Parameters
H (abs. magnitude)17.89
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.190″
Uncertainty0
Orbit TypeAmor
MOID0.230503 AU
Observations Used906
Oppositions50
Arc Total1951-2025
First Observation Used1951-08-26
Last Observation Used2025-01-22
Observations (1000)
Date Type RA Dec Mag Band Observatory
2023-09-06 19:43:03 C 22 20 37.97 +01 41 33.3 V M34
2023-09-06 20:51:05 C 22 20 40.147 +01 41 18.35 X L68
2023-09-06 21:00:04 C 22 20 40.428 +01 41 11.51 X L68
2023-09-06 21:03:25 C 22 20 40.531 +01 41 08.95 X L68
2023-09-06 22:40:28 C 22 20 43.704 +01 39 53.64 V M22
2023-09-06 22:45:04 C 22 20 43.834 +01 39 50.08 V M22
2023-09-06 22:52:57 C 22 20 44.083 +01 39 44.06 V M22
2023-09-06 23:07:34 C 22 20 44.544 +01 39 32.87 V M22
2023-09-06 23:10:28 B 22 20 45.04 +01 38 53.8 Z M61
2023-09-06 23:16:20 B 22 20 45.25 +01 38 49.1 Z M61
2023-09-06 23:21:14 B 22 20 45.41 +01 38 45.7 Z M61
2023-09-06 23:25:08 B 22 20 45.52 +01 38 42.5 Z M61
2023-09-07 20:31:18 B 22 21 34.274 +01 22 35.76 V L65
2023-09-07 20:35:43 B 22 21 34.411 +01 22 32.56 V L65
2023-09-07 20:39:51 B 22 21 34.562 +01 22 29.46 V L65
2023-09-08 21:41:11 B 22 22 30.982 +01 03 37.08 V L65
2023-09-08 21:44:17 B 22 22 31.090 +01 03 34.74 V L65
2023-09-08 21:47:24 B 22 22 31.195 +01 03 32.29 V L65
2023-09-09 03:26:35 B 22 22 44.78 +00 59 25.9 X V42
2023-09-09 04:30:36 B 22 22 46.82 +00 58 38.1 X V42
2023-09-09 05:34:08 B 22 22 48.84 +00 57 50.8 X V42
2023-09-10 19:22:42 C 22 24 14.77 +00 29 52.2 V M34
2023-09-10 19:30:02 C 22 24 15.08 +00 29 47.4 V M34
2023-09-10 19:37:22 C 22 24 15.30 +00 29 41.8 V M34
2023-09-10 20:40:31 C 22 24 17.38 +00 28 56.3 X G02
2023-09-10 20:46:05 C 22 24 17.57 +00 28 52.3 X G02
2023-09-10 20:51:38 C 22 24 17.75 +00 28 48.2 X G02
2023-09-11 18:19:21 C 22 25 06.98 +00 13 20.7 Z G23
2023-09-11 18:40:54 C 22 25 07.61 +00 13 03.1 Z G23
2023-09-11 18:58:41 C 22 25 08.25 +00 12 51.2 V M34
2023-09-11 19:06:01 C 22 25 08.53 +00 12 45.4 V M34
2023-09-11 19:13:21 C 22 25 08.81 +00 12 40.4 V M34
2023-09-12 22:25:44 C 22 26 09.379 -00 06 01.98 V M22
2023-09-12 22:30:19 C 22 26 09.518 -00 06 05.26 V M22
2023-09-12 22:38:09 C 22 26 09.766 -00 06 10.73 V M22
2023-09-12 23:29:03 C 22 26 11.390 -00 06 46.44 V M22
2023-09-13 09:22:57 C 22 26 33.732 -00 14 09.47 V U68
2023-09-13 09:28:37 C 22 26 33.922 -00 14 13.64 V U68
2023-09-13 09:53:24 C 22 26 34.744 -00 14 30.67 V U68
2023-09-13 09:59:05 C 22 26 34.945 -00 14 34.47 V U68
2023-09-14 04:43:20 B 22 27 19.00 -00 27 26.4 X V42
2023-09-14 05:44:50 B 22 27 20.93 -00 28 08.6 X V42
2023-09-14 06:48:16 B 22 27 22.98 -00 28 51.5 X V42
2023-09-14 20:34:56 C 22 27 55.18 -00 38 16.6 V G33
2023-09-14 20:36:17 C 22 27 55.21 -00 38 17.9 V G33
2023-09-14 20:38:07 C 22 27 55.30 -00 38 19.1 V G33
2023-09-14 20:39:40 C 22 27 55.33 -00 38 19.9 V G33
2023-09-14 20:41:25 C 22 27 55.41 -00 38 20.7 V G33
2023-09-14 20:43:06 C 22 27 55.46 -00 38 22.0 V G33
2023-09-15 03:09:06 B 22 28 10.65 -00 42 34.8 X V42