31221 (1998 BP26)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Gaia
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.2569976914 ± 2.85e-08
Semi-major axis (a)1.7232698844 AU ± 1.25e-09
Inclination (i)20.21787331° ± 2.90e-06
Long. of Asc. Node (Ω)331.00578191° ± 3.34e-06
Arg. of Perihelion (ω)186.78961271° ± 6.50e-06
Mean Anomaly (M)99.22913393° ± 5.63e-06
Mean Motion (n)0.4356947517°/day ± 4.75e-10
Perihelion dist (q)1.28039350 AU ± 4.91e-08
Aphelion dist (Q)2.16614627 AU ± 4.92e-08
Orbital Period2.26219453 yr ± 2.47e-09
Physical Parameters
H (abs. magnitude)17.23
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.348″
Uncertainty0
Orbit TypeAmor
MOID0.292311 AU
Observations Used1148
Gaia Obs Used43
Oppositions10
Arc Total1998-2025
First Observation Used1998-01-29
Last Observation Used2025-04-26
Observations (1208)
Date Type RA Dec Mag Band Observatory
2010-12-03 02:16:54 C 22 31 01.74 +07 55 23.0 r G96
2010-12-03 02:27:48 C 22 31 02.17 +07 55 25.2 r G96
2010-12-03 02:38:43 C 22 31 02.56 +07 55 27.0 r G96
2010-12-03 02:49:34 C 22 31 02.96 +07 55 29.0 r G96
2012-05-28 09:16:38 C 22 21 07.41 -26 46 42.9 o 807
2012-05-28 09:30:39 C 22 21 07.82 -26 46 40.3 o 807
2012-05-28 09:42:12 C 22 21 08.15 -26 46 38.4 o 807
2012-11-04 05:17:43 c 20 53 25.110 -14 02 36.17 L F51
2012-11-04 05:25:40 c 20 53 25.403 -14 02 33.25 L F51
2012-11-04 05:33:39 c 20 53 25.708 -14 02 30.40 L F51
2012-11-04 05:41:35 c 20 53 25.999 -14 02 27.38 L F51
2014-02-03 08:54:44 C 15 36 09.06 -35 17 40.7 u 807
2014-02-03 09:03:44 C 15 36 10.20 -35 17 50.4 u 807
2014-02-03 09:12:48 C 15 36 11.35 -35 18 00.4 u 807
2015-11-07 12:12:03 C 07 48 15.93 +57 28 41.8 q 703
2015-11-07 12:15:25 C 07 48 16.38 +57 28 43.4 q 703
2015-11-07 12:18:47 C 07 48 16.61 +57 28 44.1 q 703
2015-11-07 12:22:10 C 07 48 16.98 +57 28 44.9 q 703
2015-11-24 10:14:10 C 08 26 14.91 +60 24 06.9 u H21
2015-11-24 10:16:10 C 08 26 15.06 +60 24 07.5 u H21
2015-11-24 10:18:11 C 08 26 15.20 +60 24 08.3 u H21
2015-11-24 10:20:11 C 08 26 15.37 +60 24 09.2 u H21
2015-11-24 10:22:11 C 08 26 15.50 +60 24 10.0 u H21
2015-11-24 10:24:12 C 08 26 15.65 +60 24 10.9 u H21
2015-11-24 10:26:12 C 08 26 15.80 +60 24 11.8 u H21
2015-11-24 10:28:12 C 08 26 15.93 +60 24 12.6 u H21
2015-11-24 10:30:12 C 08 26 16.10 +60 24 13.5 u H21
2015-11-24 10:32:12 C 08 26 16.24 +60 24 14.3 u H21
2015-11-24 10:34:12 C 08 26 16.40 +60 24 15.1 u H21
2015-11-24 10:36:12 C 08 26 16.54 +60 24 16.0 u H21
2015-11-24 10:38:11 C 08 26 16.66 +60 24 16.7 u H21
2015-12-04 11:40:54 C 08 41 55.43 +62 03 33.8 q 703
2015-12-04 11:46:45 C 08 41 55.82 +62 03 36.8 q 703
2015-12-04 11:52:37 C 08 41 56.03 +62 03 38.9 q 703
2015-12-04 11:58:31 C 08 41 56.24 +62 03 41.5 q 703
2015-12-19 07:54:14 C 08 48 27.21 +64 10 20.1 u H15
2015-12-19 08:08:07 C 08 48 26.76 +64 10 24.9 u H15
2015-12-19 08:22:00 C 08 48 26.44 +64 10 30.6 u H15
2016-01-02 09:38:28 C 08 28 58.57 +64 54 51.9 q 703
2016-01-02 09:44:53 C 08 28 57.90 +64 54 51.1 q 703
2016-01-02 09:51:17 C 08 28 57.11 +64 54 51.4 q 703
2016-01-02 09:57:38 C 08 28 56.45 +64 54 50.3 q 703
2016-01-03 07:43:39 C 08 26 48.07 +64 52 43.9 q 703
2016-01-03 08:03:36 C 08 26 45.93 +64 52 41.8 q 703
2016-01-03 08:10:57 C 08 26 45.09 +64 52 41.2 q 703
2016-01-03 08:18:18 C 08 26 44.25 +64 52 40.4 q 703
2016-01-15 05:43:20 C 07 52 03.87 +62 55 13.2 q 703
2016-01-15 05:50:40 C 07 52 02.88 +62 55 07.8 q 703
2016-01-15 05:57:59 C 07 52 01.73 +62 55 02.9 q 703
2016-01-15 06:05:17 C 07 52 00.72 +62 54 57.8 q 703