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
2008-11-08 22:39:35 C 00 21 11.78 +42 52 34.3 c B37
2008-11-08 22:40:22 C 00 21 11.85 +42 52 33.7 c B37
2008-11-08 22:56:48 C 00 21 10.58 +42 52 26.4 c B37
2008-11-08 23:19:08 C 00 21 09.30 +42 52 19.5 c B37
2008-11-08 23:46:08 C 00 21 07.56 +42 52 07.8 c B37
2008-11-09 00:04:07 C 00 21 06.40 +42 52 00.8 c B37
2008-11-09 00:06:28 C 00 21 06.28 +42 51 58.9 c B37
2008-11-09 00:19:01 C 00 21 05.62 +42 51 54.5 c B37
2008-11-21 17:52:25 C 00 07 54.08 +40 36 55.7 v B15
2008-11-21 18:13:14 C 00 07 53.50 +40 36 46.0 v B15
2008-11-21 18:16:42 C 00 07 53.40 +40 36 44.4 v B15
2008-11-21 18:19:54 C 00 07 53.31 +40 36 42.9 v B15
2008-11-27 17:51:31 C 00 05 20.51 +39 29 21.8 r 106
2008-11-27 18:04:17 C 00 05 20.42 +39 29 15.2 r 106
2008-11-27 18:17:02 C 00 05 20.12 +39 29 09.3 r 106
2008-11-27 18:29:48 C 00 05 20.05 +39 29 03.3 r 106
2009-01-15 02:12:50 C 00 53 14.94 +34 17 03.3 19.9 c 704
2009-01-15 02:30:52 C 00 53 16.35 +34 17 01.5 20.3 c 704
2009-01-15 02:48:59 C 00 53 17.73 +34 17 00.1 20.1 c 704
2010-09-03 08:51:44 C 23 19 18.28 +07 38 02.3 19.4 c 704
2010-09-03 09:08:09 C 23 19 17.18 +07 38 04.4 19.8 c 704
2010-09-03 09:24:41 C 23 19 16.06 +07 38 06.4 19.2 c 704
2010-09-03 09:41:07 C 23 19 14.94 +07 38 07.6 19.6 c 704
2010-09-03 11:42:15 C 23 19 07.085 +07 38 20.08 L F51
2010-09-03 11:58:00 C 23 19 06.012 +07 38 21.49 L F51
2010-09-06 07:12:50 C 23 14 35.68 +07 43 48.4 19.4 c 704
2010-09-06 07:29:35 C 23 14 34.53 +07 43 48.5 19.6 c 704
2010-09-06 07:46:21 C 23 14 33.39 +07 43 49.1 19.6 c 704
2010-09-06 08:03:09 C 23 14 32.10 +07 43 49.3 19.9 c 704
2010-09-06 08:19:57 C 23 14 31.03 +07 43 51.3 20.0 c 704
2010-09-10 06:11:10 C 23 08 06.55 +07 48 43.0 20.5 c 704
2010-09-10 06:29:07 C 23 08 05.38 +07 48 42.7 19.7 c 704
2010-09-10 06:46:26 C 23 08 04.07 +07 48 43.6 20.4 c 704
2010-09-10 07:03:45 C 23 08 02.90 +07 48 44.9 20.3 c 704
2010-09-10 07:05:12 C 23 08 02.81 +07 48 43.3 19.6 c 704
2010-09-10 07:22:12 C 23 08 01.63 +07 48 44.4 19.8 c 704
2010-09-10 07:39:14 C 23 08 00.42 +07 48 45.0 20.2 c 704
2010-09-10 07:56:19 C 23 07 59.20 +07 48 44.3 19.9 c 704
2010-09-10 08:13:24 C 23 07 57.97 +07 48 46.5 19.9 c 704
2010-09-12 05:17:31 C 23 04 52.68 +07 49 57.9 r G96
2010-09-12 05:24:45 C 23 04 52.14 +07 49 58.0 r G96
2010-09-12 05:32:05 C 23 04 51.63 +07 49 58.2 r G96
2010-09-12 05:39:16 C 23 04 51.13 +07 49 58.5 r G96
2010-09-14 07:35:17 C 23 01 25.78 +07 50 33.0 r G96
2010-09-14 07:45:15 C 23 01 25.06 +07 50 33.1 r G96
2010-09-14 08:05:21 C 23 01 23.62 +07 50 33.7 r G96
2010-10-01 04:57:57 C 22 36 11.80 +07 32 34.9 r 703
2010-10-01 05:06:08 C 22 36 11.23 +07 32 32.2 r 703
2010-10-01 05:14:21 C 22 36 10.83 +07 32 31.4 r 703
2010-10-01 05:22:29 C 22 36 10.44 +07 32 31.4 r 703