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
2001-09-18 06:15:40 C 23 20 36.148 +13 48 27.19 645
2001-09-18 06:16:16 C 23 20 36.148 +13 48 27.21 645
2001-09-29 02:57:07 C 23 03 05.42 +13 36 35.2 20.3 m 644
2001-09-29 03:28:35 C 23 03 03.39 +13 36 31.9 20.3 m 644
2001-09-29 04:01:56 C 23 03 01.21 +13 36 29.6 19.8 m 644
2001-10-06 04:47:32 C 22 53 04.11 +13 17 36.7 20.2 c 644
2001-10-06 05:02:37 C 22 53 03.26 +13 17 35.2 20.4 c 644
2001-10-06 05:17:48 C 22 53 02.44 +13 17 33.5 20.1 c 644
2003-07-08 10:16:09 C 22 41 46.94 -19 50 56.2 19.8 c 644
2003-07-08 10:47:28 C 22 41 46.06 -19 50 54.1 19.5 c 644
2003-07-08 11:17:51 C 22 41 45.24 -19 50 51.3 19.5 c 644
2003-07-29 04:19:43 C 22 20 08.36 -19 27 44.7 m 859
2003-07-29 04:28:33 C 22 20 07.70 -19 27 43.7 m 859
2003-08-20 08:56:49 C 21 43 09.78 -18 47 29.8 20.5 c 608
2003-08-20 09:12:35 C 21 43 08.64 -18 47 28.6 20.6 c 608
2003-08-20 09:27:57 C 21 43 07.53 -18 47 26.6 20.7 c 608
2003-09-04 03:57:53 C 21 19 45.72 -17 48 06.3 c 691
2003-09-04 04:40:03 C 21 19 43.21 -17 47 57.5 c 691
2003-09-04 05:20:23 C 21 19 40.81 -17 47 49.6 c 691
2005-06-06 15:16:50 C 20 15 41.21 -55 39 09.3 r E12
2005-06-06 15:32:49 C 20 15 40.16 -55 39 13.8 r E12
2005-06-06 15:48:48 C 20 15 39.09 -55 39 17.5 r E12
2005-06-06 16:04:44 C 20 15 38.18 -55 39 21.1 r E12
2005-06-30 13:32:17 C 19 22 39.60 -55 39 26.4 r E12
2005-06-30 13:42:30 C 19 22 38.44 -55 39 24.0 r E12
2005-06-30 13:46:36 C 19 22 37.88 -55 39 23.0 r E12
2005-06-30 13:56:51 C 19 22 36.68 -55 39 19.5 r E12
2005-06-30 14:00:54 C 19 22 36.27 -55 39 18.8 r E12
2005-06-30 14:11:09 C 19 22 35.11 -55 39 15.6 r E12
2005-06-30 14:15:11 C 19 22 34.70 -55 39 14.8 r E12
2005-06-30 14:25:30 C 19 22 33.55 -55 39 11.8 r E12
2006-11-20 11:58:25 C 09 39 53.38 +47 35 40.7 r 703
2006-11-20 12:05:49 C 09 39 54.14 +47 35 38.8 r 703
2006-11-20 12:13:19 C 09 39 54.90 +47 35 38.1 r 703
2006-11-20 12:20:41 C 09 39 55.76 +47 35 37.3 r 703
2006-11-22 12:04:11 C 09 45 19.32 +47 27 10.5 r 448
2006-11-22 12:20:04 C 09 45 21.03 +47 27 07.7 r 448
2006-11-22 12:36:31 C 09 45 22.79 +47 27 04.8 r 448
2006-12-25 23:35:54 C 10 52 32.59 +43 40 44.3 18.1 r 084
2006-12-25 23:41:05 C 10 52 32.86 +43 40 42.1 18.2 r 084
2006-12-30 03:41:18 C 10 56 38.91 +42 58 55.6 17.7 r 084
2006-12-30 03:46:28 C 10 56 39.09 +42 58 53.2 17.8 r 084
2007-01-07 10:11:25 C 11 00 59.66 +41 20 01.8 r 448
2007-01-07 10:15:45 C 11 00 59.55 +41 19 59.2 r 448
2007-01-07 10:20:05 C 11 00 59.59 +41 19 56.6 r 448
2007-01-15 11:05:28 C 10 59 34.24 +39 14 09.4 r 448
2007-01-15 11:10:58 C 10 59 34.08 +39 14 05.3 r 448
2007-01-15 11:16:27 C 10 59 33.93 +39 14 01.2 r 448
2007-01-24 20:04:19 C 10 49 58.07 +35 47 16.7 16.6 r 084
2007-01-24 20:09:30 C 10 49 57.77 +35 47 11.3 16.3 r 084