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
2020-10-20 09:30:25 C 02 53 39.850 +11 43 22.65 U F52
2020-10-20 09:50:49 C 02 53 38.707 +11 43 13.77 U F52
2020-10-23 07:59:27 C 02 49 52.28 +11 12 30.3 V G96
2020-10-23 08:06:48 C 02 49 51.86 +11 12 27.2 V G96
2020-10-23 08:14:11 C 02 49 51.44 +11 12 24.0 V G96
2020-10-23 08:21:34 C 02 49 51.02 +11 12 20.7 V G96
2020-10-23 08:35:05 C 02 49 50.25 +11 12 14.9 V G96
2020-10-23 08:43:57 C 02 49 49.73 +11 12 11.1 V G96
2020-10-23 08:51:19 C 02 49 49.33 +11 12 07.8 V G96
2020-10-23 11:09:02 C 02 49 41.98 +11 11 10.8 V T08
2020-10-23 11:13:40 C 02 49 41.72 +11 11 08.8 V T08
2020-10-23 11:27:10 C 02 49 40.94 +11 11 02.8 V T08
2020-10-23 11:44:47 C 02 49 39.91 +11 10 55.3 V T08
2020-10-23 12:18:08 C 02 49 38.031 +11 10 40.49 U F52
2020-10-23 12:33:53 C 02 49 37.135 +11 10 33.61 U F52
2020-10-23 12:49:34 C 02 49 36.241 +11 10 26.79 U F52
2020-10-24 08:17:26 C 02 48 33.15 +11 02 01.0 V 703
2020-10-24 08:24:59 C 02 48 32.72 +11 01 58.4 V 703
2020-10-24 08:32:31 C 02 48 32.26 +11 01 55.5 V 703
2020-10-24 08:44:15 C 02 48 31.57 +11 01 50.1 V 703
2020-10-25 12:23:28 C 02 47 01.33 +10 50 02.7 V T05
2020-10-25 12:34:33 C 02 47 00.75 +10 49 58.6 V T05
2020-10-25 12:40:29 C 02 47 00.37 +10 49 56.5 V T05
2020-10-25 12:56:27 C 02 46 59.52 +10 49 50.0 V T05
2020-11-05 07:30:20 C 02 33 24.47 +09 08 59.7 V G96
2020-11-05 07:37:48 C 02 33 24.06 +09 08 56.4 V G96
2020-11-05 07:45:09 C 02 33 23.74 +09 08 54.1 V G96
2020-11-05 07:52:37 C 02 33 23.32 +09 08 51.9 V G96
2020-11-05 08:25:40 C 02 33 22.08 +09 08 41.9 V T05
2020-11-05 08:30:18 C 02 33 21.79 +09 08 39.8 V T05
2020-11-05 08:37:44 C 02 33 21.44 +09 08 38.0 V T05
2020-11-05 08:52:14 C 02 33 20.67 +09 08 33.9 V T05
2020-11-08 07:24:24 C 02 29 58.529 +08 45 08.05 U F52
2020-11-08 07:40:10 C 02 29 57.764 +08 45 03.11 U F52
2020-11-08 07:55:55 C 02 29 56.998 +08 44 58.17 U F52
2020-11-08 08:11:39 C 02 29 56.231 +08 44 53.22 U F52
2020-11-10 14:25:43 C 02 27 29.39 +08 28 17.9 q D29
2020-11-10 14:29:32 C 02 27 29.24 +08 28 17.3 q D29
2020-11-10 14:46:05 C 02 27 28.52 +08 28 12.7 q D29
2020-11-10 14:49:54 C 02 27 28.32 +08 28 11.3 q D29
2020-11-10 15:06:27 C 02 27 27.65 +08 28 06.7 q D29
2020-11-10 15:10:16 C 02 27 27.39 +08 28 05.0 q D29
2020-11-10 22:32:55 C 02 27 08.11 +08 25 54.8 V 130
2020-11-10 22:40:05 C 02 27 07.72 +08 25 52.5 V 130
2020-11-15 06:51:42 C 02 22 53.68 +07 58 18.3 V G96
2020-11-15 06:59:16 C 02 22 53.38 +07 58 16.3 V G96
2020-11-15 07:06:47 C 02 22 53.07 +07 58 14.8 V G96
2020-11-15 07:15:55 C 02 22 52.71 +07 58 12.4 V G96
2020-11-16 07:11:21 C 02 21 59.964 +07 52 38.10 U F52
2020-11-16 07:27:12 C 02 21 59.355 +07 52 34.48 U F52