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
2023-09-04 15:13:22 B 22 18 37.68 +02 22 24.7 Z O46
2023-09-04 16:08:19 C 22 18 38.988 +02 22 06.53 V P07
2023-09-04 17:25:13 C 22 18 41.366 +02 21 06.30 V P07
2023-09-04 17:48:39 C 22 18 44.229 +02 20 22.58 W M01
2023-09-04 18:22:51 C 22 18 43.176 +02 20 21.12 V P07
2023-09-04 21:25:19 C 22 18 51.74 +02 17 27.9 V G17
2023-09-04 21:35:29 C 22 18 52.08 +02 17 20.0 V G17
2023-09-04 21:45:39 C 22 18 52.41 +02 17 11.9 V G17
2023-09-04 21:54:48 C 22 18 52.72 +02 17 04.7 V G17
2023-09-04 21:57:57 C 22 18 52.179 +02 17 08.00 W M01
2023-09-05 00:19:04 C 22 18 56.731 +02 15 17.49 W M01
2023-09-05 03:12:14 C 22 19 04.65 +02 13 18.5 q X33
2023-09-05 03:16:50 C 22 19 04.82 +02 13 15.2 q X33
2023-09-05 03:21:09 C 22 19 04.96 +02 13 11.9 q X33
2023-09-05 07:24:19 C 22 19 13.008 +02 10 14.77 V W68
2023-09-05 07:29:32 C 22 19 13.169 +02 10 10.63 V W68
2023-09-05 07:38:42 C 22 19 13.471 +02 10 03.32 V W68
2023-09-05 07:41:18 C 22 19 13.572 +02 10 01.20 V W68
2023-09-05 09:47:34 C 22 19 19.733 +02 07 59.04 X F51
2023-09-05 10:05:54 C 22 19 20.291 +02 07 44.86 X F51
2023-09-05 10:26:27 C 22 19 20.918 +02 07 28.84 X F51
2023-09-05 15:46:30 B 22 19 33.83 +02 03 16.3 Z O46
2023-09-05 15:50:41 B 22 19 33.96 +02 03 13.3 Z O46
2023-09-05 15:54:51 B 22 19 34.10 +02 03 09.8 Z O46
2023-09-05 15:59:02 B 22 19 34.23 +02 03 06.7 Z O46
2023-09-05 16:04:13 B 22 19 34.38 +02 03 02.5 Z O46
2023-09-05 16:09:21 B 22 19 34.54 +02 02 58.5 Z O46
2023-09-05 16:14:35 B 22 19 34.71 +02 02 54.6 Z O46
2023-09-05 16:19:49 B 22 19 34.86 +02 02 50.5 Z O46
2023-09-05 17:34:52 C 22 19 38.871 +02 01 51.16 W M01
2023-09-05 18:47:01 C 22 19 41.30 +02 00 48.4 V M34
2023-09-05 18:58:10 C 22 19 41.71 +02 00 39.5 V M34
2023-09-05 19:24:56 C 22 19 42.60 +02 00 18.8 V M34
2023-09-05 22:08:14 C 22 19 47.533 +01 58 19.79 W M01
2023-09-06 00:50:44 C 22 19 52.857 +01 56 13.65 W M01
2023-09-06 01:45:11 C 22 19 57.33 +01 55 29.4 V W46
2023-09-06 02:11:09 C 22 19 58.19 +01 55 09.4 V W46
2023-09-06 02:36:51 C 22 19 59.03 +01 54 49.6 V W46
2023-09-06 05:18:02 C 22 20 04.963 +01 52 46.20 V G96
2023-09-06 05:26:07 C 22 20 05.219 +01 52 40.04 V G96
2023-09-06 05:34:12 C 22 20 05.482 +01 52 33.78 V G96
2023-09-06 05:42:17 C 22 20 05.726 +01 52 27.55 V G96
2023-09-06 14:27:20 C 22 20 25.838 +01 46 08.36 V P07
2023-09-06 15:37:57 C 22 20 27.970 +01 45 13.90 V P07
2023-09-06 16:48:15 C 22 20 30.163 +01 44 19.97 V P07
2023-09-06 17:48:01 C 22 20 32.011 +01 43 33.85 V P07
2023-09-06 18:14:24 C 22 20 34.972 +01 42 48.84 W M01
2023-09-06 19:29:21 C 22 20 37.50 +01 41 43.8 V M34
2023-09-06 19:30:49 C 22 20 37.420 +01 41 50.27 W M01
2023-09-06 19:36:35 C 22 20 37.77 +01 41 38.4 V M34