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
2017-01-24 23:53:55 C 08 05 12.55 +17 10 45.7 19.3 q J43
2017-01-26 06:26:42 C 08 03 39.70 +17 12 39.1 – q G96
2017-01-26 06:32:53 C 08 03 39.38 +17 12 39.9 – q G96
2017-01-26 06:39:09 C 08 03 39.02 +17 12 40.0 – q G96
2017-01-26 06:45:23 C 08 03 38.73 +17 12 40.6 – q G96
2017-01-27 11:21:46 C 08 02 13.030 +17 14 25.79 – L F51
2017-01-27 11:39:59 C 08 02 12.109 +17 14 26.90 – L F51
2017-01-27 11:58:13 C 08 02 11.177 +17 14 27.92 – L F51
2017-01-27 12:16:30 C 08 02 10.254 +17 14 29.02 – L F51
2017-02-02 09:02:25 C 07 55 33.79 +17 22 26.6 – q G96
2017-02-02 09:08:34 C 07 55 33.49 +17 22 27.3 – q G96
2017-02-02 09:17:28 C 07 55 33.08 +17 22 27.0 – q G96
2017-02-02 10:35:29 C 07 55 29.56 +17 22 30.3 – q G96
2017-02-02 10:38:25 C 07 55 29.45 +17 22 30.7 – q G96
2017-02-02 10:41:22 C 07 55 29.30 +17 22 30.8 – q G96
2017-02-02 10:44:17 C 07 55 29.24 +17 22 31.0 – q G96
2017-02-25 02:46:48 C 07 38 32.81 +17 41 07.9 – q G96
2017-02-25 02:53:04 C 07 38 32.74 +17 41 06.8 – q G96
2017-02-25 02:59:12 C 07 38 32.56 +17 41 07.9 – q G96
2017-02-25 03:05:47 C 07 38 32.43 +17 41 08.2 – q G96
2020-07-09 09:47:57 C 17 46 26.93 -26 15 07.6 – V T08
2020-07-09 09:57:54 C 17 46 26.34 -26 15 03.7 – V T08
2020-07-09 10:15:08 C 17 46 25.27 -26 14 58.0 – V T08
2020-07-12 01:57:52 C 17 42 49.54 -25 52 23.6 – q W46
2020-07-12 03:01:34 C 17 42 45.84 -25 51 59.6 – q W46
2020-07-12 07:03:38 C 17 42 32.18 -25 50 31.3 – U I41
2020-07-12 07:30:55 C 17 42 30.59 -25 50 21.0 – U I41
2020-07-15 05:01:45 C 17 38 47.34 -25 24 26.8 – U I41
2020-07-15 06:26:42 C 17 38 42.65 -25 23 54.6 – U I41
2020-07-19 08:36:34 C 17 33 54.01 -24 45 42.8 – V T05
2020-07-19 08:41:11 C 17 33 53.80 -24 45 40.8 – V T05
2020-07-19 08:50:26 C 17 33 53.37 -24 45 36.9 – V T05
2020-07-19 09:39:42 C 17 33 50.95 -24 45 17.1 – V T05
2020-07-23 08:50:25 C 17 29 48.74 -24 07 08.2 – V T05
2020-07-23 08:55:02 C 17 29 48.50 -24 07 07.1 – V T05
2020-07-23 09:03:41 C 17 29 48.15 -24 07 03.8 – V T05
2020-07-23 09:20:13 C 17 29 47.46 -24 06 56.3 – V T05
2020-08-12 07:25:05 C 17 21 33.30 -20 58 54.1 – V T05
2020-08-12 07:29:44 C 17 21 33.29 -20 58 52.3 – V T05
2020-08-12 07:38:59 C 17 21 33.32 -20 58 49.5 – V T05
2020-08-12 07:56:18 C 17 21 33.36 -20 58 42.5 – V T05
2020-08-20 19:42:06 C 17 24 47.08 -19 47 36.7 – V C95
2020-08-20 19:51:12 C 17 24 47.33 -19 47 33.1 – V C95
2020-08-21 05:01:33 S 17 25 01.74 -19 44 20.1 – L C51
2020-08-21 08:09:53 S 17 25 06.81 -19 43 17.8 – L C51
2020-08-21 11:17:27 S 17 25 11.90 -19 42 15.4 – L C51
2020-08-21 14:26:31 S 17 25 17.09 -19 41 13.2 – L C51
2020-08-21 20:43:09 S 17 25 27.607 -19 39 09.22 – L C51
2020-08-21 22:17:24 S 17 25 30.314 -19 38 38.26 – L C51
2020-08-22 01:25:43 S 17 25 35.64 -19 37 36.3 – L C51