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
1998-02-09 03:23:34 C 12 31 24.75 -06 56 06.4 z 118
1998-02-09 03:30:23 C 12 31 24.62 -06 56 22.0 z 118
1998-02-10 23:42:33 C 12 30 40.67 -08 39 17.4 046
1998-02-10 23:48:36 C 12 30 40.53 -08 39 31.6 046
1998-02-10 23:50:53 C 12 30 40.47 -08 39 37.0 046
1998-02-18 17:36:46 C 12 24 37.29 -16 08 05.5 z 422
1998-02-18 17:38:45 C 12 24 37.19 -16 08 10.4 z 422
1998-02-18 17:40:44 C 12 24 37.08 -16 08 15.5 z 422
1998-02-19 03:56:45 C 12 24 08.29 -16 33 57.9 046
1998-02-19 03:59:04 C 12 24 08.18 -16 34 03.3 046
1998-02-19 04:01:00 C 12 24 08.12 -16 34 08.5 046
1998-02-20 11:43:24 C 12 22 36.14 -17 51 36.5 z 422
1998-02-20 11:45:41 C 12 22 35.96 -17 51 42.5 z 422
1998-02-20 11:47:58 C 12 22 35.83 -17 51 48.0 z 422
1998-02-20 14:46:00 C 12 22 26.11 -17 59 08.7 426
1998-02-20 14:52:23 C 12 22 25.73 -17 59 24.9 426
1998-02-20 14:57:12 C 12 22 25.48 -17 59 36.5 426
1998-02-20 15:01:52 C 12 22 25.20 -17 59 48.3 426
1998-02-21 01:37:11 C 12 21 50.66 -18 26 17.8 557
1998-02-21 01:40:43 C 12 21 50.46 -18 26 26.5 557
1998-02-21 01:43:58 C 12 21 50.28 -18 26 34.5 557
1998-02-21 02:29:08 C 12 21 47.60 -18 28 24.8 z 118
1998-02-21 02:30:59 C 12 21 47.45 -18 28 29.5 z 118
1998-02-21 18:29:45 C 12 20 54.67 -19 07 40.0 360
1998-02-21 18:33:45 C 12 20 54.41 -19 07 49.5 360
1998-02-21 18:37:45 C 12 20 54.17 -19 07 59.2 360
1998-02-24 11:37:59 C 12 16 58.07 -21 46 02.2 z 422
1998-02-24 11:40:05 C 12 16 57.91 -21 46 07.6 z 422
1998-02-25 13:50:45 C 12 15 09.72 -22 49 37.5 c 566
1998-02-25 14:05:20 C 12 15 08.63 -22 50 12.4 c 566
1998-02-25 14:19:20 C 12 15 07.55 -22 50 45.6 c 566
1998-02-25 15:30:25 C 12 15 03.94 -22 53 15.8 426
1998-02-25 15:35:51 C 12 15 03.52 -22 53 28.8 426
1998-02-25 15:40:18 C 12 15 03.18 -22 53 39.6 426
1998-03-02 15:46:54 C 12 05 41.11 -27 33 30.9 z 402
1998-03-02 15:50:54 C 12 05 40.75 -27 33 39.8 z 402
1998-03-02 15:54:54 C 12 05 40.37 -27 33 48.9 z 402
1998-03-02 17:54:29 C 12 05 29.45 -27 38 13.6 360
1998-03-02 17:58:30 C 12 05 29.08 -27 38 22.7 360
1998-03-02 18:02:00 C 12 05 28.74 -27 38 30.6 360
1998-03-03 09:04:08 C 12 04 10.57 -28 11 56.1 z 711
1998-03-03 09:10:31 C 12 04 09.95 -28 12 10.1 z 711
1998-03-03 14:09:16 C 12 03 44.48 -28 22 46.7 z 422
1998-03-03 14:11:21 C 12 03 44.27 -28 22 51.2 z 422
1998-03-03 14:13:27 C 12 03 44.08 -28 22 55.7 z 422
1998-03-04 08:52:00 C 12 02 03.26 -29 04 01.1 z 711
1998-03-04 08:58:31 C 12 02 02.62 -29 04 15.1 z 711
1998-03-08 05:32:15 C 11 53 12.70 -32 15 33.9 z 860
1998-03-08 05:40:36 C 11 53 11.83 -32 15 50.4 z 860
1998-03-08 05:46:56 C 11 53 11.14 -32 16 02.3 z 860