9172 Abhramu (1989 OB)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5528095681 ± 2.97e-08
Semi-major axis (a)2.7099939282 AU ± 2.82e-09
Inclination (i)7.84213734° ± 6.02e-06
Long. of Asc. Node (Ω)287.57299592° ± 2.78e-05
Arg. of Perihelion (ω)74.18679131° ± 2.87e-05
Mean Anomaly (M)46.77244969° ± 4.36e-06
Mean Motion (n)0.2209325979°/day ± 3.44e-10
Perihelion dist (q)1.21188336 AU ± 8.05e-08
Aphelion dist (Q)4.20810450 AU ± 8.06e-08
Orbital Period4.46120805 yr ± 6.95e-09
Physical Parameters
H (abs. magnitude)16.64
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.390″
Uncertainty0
Orbit TypeAmor
MOID0.250608 AU
Observations Used456
Oppositions29
Arc Total1989-2026
First Observation Used1989-07-07
Last Observation Used2026-02-07
Observations (477)
Date Type RA Dec Mag Band Observatory
2013-02-10 11:26:00 C 10 00 17.316 +04 39 43.88 L F51
2013-02-10 11:45:04 C 10 00 16.581 +04 39 47.26 L F51
2013-02-10 12:03:43 C 10 00 15.827 +04 39 50.36 L F51
2013-02-10 12:22:00 C 10 00 15.089 +04 39 53.28 L F51
2013-02-17 06:26:28 C 09 53 52.87 +05 07 33.8 r G96
2013-02-17 06:36:22 C 09 53 52.54 +05 07 35.4 r G96
2013-02-17 06:46:25 C 09 53 52.08 +05 07 37.6 r G96
2013-02-17 06:56:24 C 09 53 51.72 +05 07 39.1 r G96
2013-03-04 07:07:58 C 09 40 36.222 +06 12 22.47 L F51
2013-03-04 07:48:59 C 09 40 34.812 +06 12 29.67 L F51
2013-03-04 08:09:29 C 09 40 34.107 +06 12 33.36 L F51
2015-04-18 10:49:57 C 14 25 44.617 -25 21 28.74 L F51
2015-04-18 11:05:48 C 14 25 43.980 -25 21 26.56 L F51
2015-04-18 11:37:20 C 14 25 42.706 -25 21 21.96 L F51
2015-04-24 10:20:38 C 14 19 56.957 -24 58 06.55 L F51
2015-04-24 10:36:33 C 14 19 56.267 -24 58 03.46 L F51
2015-04-24 10:52:22 C 14 19 55.606 -24 58 00.83 L F51
2015-04-24 11:08:07 C 14 19 54.929 -24 57 57.94 L F51
2016-10-12 11:52:15 C 08 27 48.95 +21 04 19.9 o 691
2016-10-12 12:08:58 C 08 27 49.85 +21 04 15.1 o 691
2016-10-12 12:25:40 C 08 27 50.81 +21 04 10.6 o 691
2016-11-06 11:54:30 C 08 53 00.12 +18 27 17.3 q G96
2016-11-06 12:00:49 C 08 53 00.32 +18 27 16.0 q G96
2016-11-06 12:07:02 C 08 53 00.43 +18 27 14.7 q G96
2016-11-06 12:13:19 C 08 53 00.56 +18 27 14.2 q G96
2016-11-08 13:18:58 C 08 54 14.702 +18 16 36.52 L F51
2016-11-08 13:36:42 C 08 54 15.105 +18 16 32.86 L F51
2016-11-08 13:54:27 C 08 54 15.501 +18 16 29.25 L F51
2016-12-24 05:44:28 C 08 44 09.34 +16 30 01.4 o 691
2016-12-24 06:11:08 C 08 44 08.22 +16 30 01.8 o 691
2016-12-24 06:37:48 C 08 44 07.09 +16 30 02.2 o 691
2017-01-07 10:13:31 C 08 27 46.81 +16 43 50.3 q G96
2017-01-07 10:19:42 C 08 27 46.47 +16 43 50.7 q G96
2017-01-07 10:26:01 C 08 27 46.13 +16 43 51.3 q G96
2017-01-07 10:32:12 C 08 27 45.79 +16 43 51.3 q G96
2017-01-08 06:44:17 C 08 26 41.71 +16 45 02.2 q G96
2017-01-08 06:53:03 C 08 26 41.27 +16 45 02.6 q G96
2017-01-08 07:03:34 C 08 26 40.63 +16 45 03.1 q G96
2017-01-08 07:11:37 C 08 26 40.23 +16 45 03.8 q G96
2017-01-19 15:41:16 C 08 11 56.07 +17 02 29.5 q D29
2017-01-19 16:21:59 C 08 11 53.88 +17 02 32.3 q D29
2017-01-20 23:03:47 C 08 10 15.67 +17 04 32.0 U 130
2017-01-20 23:09:42 C 08 10 15.34 +17 04 32.4 U 130
2017-01-24 00:12:44 C 08 06 25.52 +17 09 16.0 19.9 q J43
2017-01-24 00:25:05 C 08 06 24.91 +17 09 16.6 19.7 q J43
2017-01-24 00:37:28 C 08 06 24.22 +17 09 17.6 19.8 q J43
2017-01-24 00:49:57 C 08 06 23.53 +17 09 18.5 19.7 q J43
2017-01-24 23:17:43 C 08 05 14.43 +17 10 43.3 19.7 q J43
2017-01-24 23:29:46 C 08 05 13.81 +17 10 43.9 19.5 q J43
2017-01-24 23:41:50 C 08 05 13.19 +17 10 44.7 19.2 q J43