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
1998-03-08 11:43:16 C 11 52 37.45 -32 27 34.4 422
1998-03-08 11:45:03 C 11 52 37.28 -32 27 37.1 422
1998-03-08 11:48:47 C 11 52 36.95 -32 27 45.4 422
1998-03-13 14:41:20 C 11 39 45.91 -36 08 34.5 422
1998-03-13 14:43:15 C 11 39 45.67 -36 08 37.3 422
1998-03-13 14:45:10 C 11 39 45.43 -36 08 41.1 422
1998-03-19 12:11:09 C 11 24 24.83 -39 31 55.5 422
1998-03-19 12:13:16 C 11 24 24.62 -39 31 58.6 422
1998-03-19 12:15:24 C 11 24 24.37 -39 32 01.3 422
1998-03-20 14:01:31 C 11 21 37.49 -40 03 01.7 426
1998-03-20 14:07:03 C 11 21 36.84 -40 03 08.4 426
1998-03-20 14:13:07 C 11 21 36.13 -40 03 15.3 426
1998-03-24 04:26:55 C 11 12 32.54 -41 33 47.3 z 860
1998-03-24 04:33:36 C 11 12 31.75 -41 33 53.0 z 860
1998-03-24 04:41:32 C 11 12 30.90 -41 34 00.1 z 860
1998-03-26 10:47:12 C 11 07 09.58 -42 20 45.3 422
1998-03-26 10:51:48 C 11 07 09.06 -42 20 49.2 422
1998-03-26 10:53:55 C 11 07 08.83 -42 20 51.0 422
1998-03-28 12:20:09 C 11 02 28.55 -42 57 21.5 426
1998-03-28 12:26:26 C 11 02 27.93 -42 57 25.7 426
1998-03-28 12:34:32 C 11 02 27.14 -42 57 31.4 426
1998-04-03 12:51:39 C 10 50 37.18 -44 13 39.9 422
1998-04-03 12:54:01 C 10 50 36.99 -44 13 40.5 422
1998-04-05 09:56:15 C 10 47 34.91 -44 29 26.5 426
1998-04-05 10:05:44 C 10 47 34.22 -44 29 29.9 426
1998-04-05 10:14:01 C 10 47 33.70 -44 29 32.4 426
1998-04-15 02:44:02 C 10 36 58.31 -45 06 42.6 860
1998-04-15 02:55:53 C 10 36 58.10 -45 06 43.0 860
1998-04-20 03:20:19 C 10 34 55.17 -45 04 48.3 860
1998-04-20 03:29:26 C 10 34 55.06 -45 04 48.0 860
1998-04-20 03:36:32 C 10 34 54.87 -45 04 47.2 860
1999-09-25 10:14:34 C 02 33 10.18 +45 26 08.1 i 693
1999-09-25 10:16:07 C 02 33 10.14 +45 26 09.7 i 693
1999-09-25 10:17:31 C 02 33 10.12 +45 26 11.5 i 693
1999-09-25 10:20:34 C 02 33 10.07 +45 26 12.6 i 693
1999-10-23 06:02:46 C 01 51 27.58 +51 45 59.9 m 697
1999-10-24 07:13:04 C 01 49 04.66 +51 52 34.0 m 697
1999-10-24 07:16:45 C 01 49 04.31 +51 52 34.9 m 697
1999-10-24 07:21:36 C 01 49 03.83 +51 52 35.9 m 697
2001-09-10 06:20:59 C 23 33 53.61 +13 38 40.6 19.7 c 704
2001-09-10 06:41:02 C 23 33 52.23 +13 38 42.8 19.8 c 704
2001-09-10 07:01:05 C 23 33 50.75 +13 38 45.2 19.8 c 704
2001-09-10 07:21:09 C 23 33 49.36 +13 38 47.3 20.0 c 704
2001-09-10 07:41:12 C 23 33 47.89 +13 38 48.1 19.9 c 704
2001-09-18 06:10:53 C 23 20 36.495 +13 48 27.25 645
2001-09-18 06:11:29 C 23 20 36.485 +13 48 27.18 645
2001-09-18 06:12:05 C 23 20 36.406 +13 48 27.26 645
2001-09-18 06:12:41 C 23 20 36.397 +13 48 27.26 645
2001-09-18 06:14:28 C 23 20 36.230 +13 48 27.25 645
2001-09-18 06:15:04 C 23 20 36.221 +13 48 27.23 645