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
2007-12-06 10:15:16 C 08 14 21.58 +21 36 43.2 r G96
2007-12-06 10:24:58 C 08 14 21.22 +21 36 42.8 r G96
2007-12-10 07:50:02 C 08 11 00.88 +21 31 44.4 19.3 c 704
2007-12-10 08:08:38 C 08 11 00.21 +21 31 44.1 19.5 c 704
2007-12-10 08:27:13 C 08 10 59.43 +21 31 43.5 19.3 c 704
2007-12-10 08:45:56 C 08 10 58.66 +21 31 42.7 19.2 c 704
2007-12-10 09:04:47 C 08 10 57.91 +21 31 42.0 19.1 c 704
2007-12-14 07:48:37 C 08 06 58.60 +21 27 50.8 19.3 c 704
2007-12-14 08:07:19 C 08 06 57.71 +21 27 49.9 19.7 c 704
2007-12-14 08:26:02 C 08 06 56.90 +21 27 49.2 19.6 c 704
2007-12-14 08:44:44 C 08 06 55.96 +21 27 49.1 19.5 c 704
2007-12-14 09:03:25 C 08 06 55.05 +21 27 48.4 19.4 c 704
2007-12-20 06:39:48 C 07 59 59.24 +21 23 37.5 r 703
2007-12-20 06:49:13 C 07 59 58.66 +21 23 36.9 r 703
2007-12-20 06:58:35 C 07 59 58.20 +21 23 36.1 r 703
2007-12-20 07:08:00 C 07 59 57.80 +21 23 36.6 r 703
2007-12-28 09:53:34 C 07 49 01.65 +21 19 31.3 o 691
2007-12-28 10:18:58 C 07 49 00.10 +21 19 31.2 o 691
2007-12-28 10:44:21 C 07 48 58.61 +21 19 29.6 o 691
2007-12-31 09:36:25 C 07 44 45.23 +21 18 07.9 18.8 c 704
2007-12-31 09:55:04 C 07 44 44.01 +21 18 07.2 19.5 c 704
2007-12-31 10:13:42 C 07 44 42.85 +21 18 07.0 19.1 c 704
2007-12-31 10:32:23 C 07 44 41.77 +21 18 07.1 19.1 c 704
2007-12-31 10:51:14 C 07 44 40.58 +21 18 06.5 18.8 c 704
2008-01-01 05:47:18 C 07 43 32.60 +21 17 43.4 o 691
2008-01-01 06:09:19 C 07 43 31.26 +21 17 43.1 o 691
2008-01-01 06:31:20 C 07 43 29.90 +21 17 42.7 o 691
2008-01-18 02:31:32 C 07 19 56.33 +21 06 36.3 o 691
2008-01-18 02:57:42 C 07 19 54.93 +21 06 35.6 o 691
2008-01-18 03:23:50 C 07 19 53.48 +21 06 34.9 o 691
2008-01-20 03:01:20 C 07 17 25.55 +21 04 46.2 o 691
2008-01-20 03:27:27 C 07 17 24.26 +21 04 45.6 o 691
2008-01-20 03:53:35 C 07 17 22.87 +21 04 43.9 o 691
2008-02-06 21:58:41 C 07 00 38.62 +20 45 13.9 g 012
2008-02-06 22:12:08 C 07 00 38.23 +20 45 12.9 g 012
2008-02-06 22:24:23 C 07 00 37.93 +20 45 12.8 g 012
2008-02-06 22:35:24 C 07 00 37.66 +20 45 12.1 g 012
2008-02-09 22:54:33 C 06 58 51.56 +20 41 33.0 j 012
2008-02-09 23:08:33 C 06 58 51.24 +20 41 33.1 j 012
2011-11-23 01:42:15 C 19 59 27.81 -14 51 56.2 r G96
2011-11-23 01:49:50 C 19 59 28.93 -14 51 52.2 r G96
2011-11-23 01:57:24 C 19 59 29.97 -14 51 48.3 r G96
2011-11-23 02:04:58 C 19 59 31.09 -14 51 43.8 r G96
2011-12-31 01:45:01 C 22 18 13.96 -03 27 23.1 r G96
2011-12-31 01:52:52 C 22 18 15.19 -03 27 16.3 r G96
2011-12-31 02:00:18 C 22 18 16.34 -03 27 09.5 r G96
2011-12-31 02:07:41 C 22 18 17.46 -03 27 02.9 r G96
2012-01-02 01:17:21 C 22 25 36.94 -02 44 42.9 u 448
2012-01-02 01:36:51 C 22 25 39.93 -02 44 25.7 u 448
2012-01-02 01:50:09 C 22 25 41.92 -02 44 14.0 u 448