138947 (2001 BA40)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Gaia
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.2537378162 ± 2.00e+00
Semi-major axis (a)1.1189081305 AU ± 3.00e+00
Inclination (i)12.84611272° ± 4.00e+00
Long. of Asc. Node (Ω)270.86238596° ± 5.00e+00
Arg. of Perihelion (ω)0.08883628° ± 6.00e+00
Mean Anomaly (M)230.87065362° ± 2.08e-04
Mean Motion (n)0.8327614864°/day ± 3.35e+00
Perihelion dist (q)0.83499882 AU ± 3.17e+00
Aphelion dist (Q)1.40281744 AU ± 4.38e+00
Orbital Period1.18356372 yr ± 4.76e+00
NGA Modelr2
A2-8.68230348e-07 AU/d²
Physical Parameters
H (abs. magnitude)18.83
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-27
RMS Residual0.537″
Uncertainty0
Orbit TypeApollo
MOID0.182344 AU
Observations Used506
Gaia Obs Used30
Oppositions2
Arc Total2001-2015
First Observation Used2001-01-23
Last Observation Used2022-03-23
Observations (527)
Date Type RA Dec Mag Band Observatory
2014-01-11 07:00:22 C 08 52 12.32 -02 58 04.9 q 703
2014-01-11 07:09:12 C 08 52 11.44 -02 58 14.5 q 703
2014-01-20 10:14:41 C 08 28 36.785 -06 47 14.22 L F51
2014-01-20 10:31:54 C 08 28 34.598 -06 47 31.17 L F51
2014-01-29 04:52:02 C 08 01 31.89 -09 52 16.6 q H15
2014-01-29 05:05:45 C 08 01 29.96 -09 52 27.1 q H15
2014-01-29 05:22:04 C 08 01 27.70 -09 52 39.4 q H15
2014-01-29 05:35:00 C 08 01 25.92 -09 52 49.4 q H15
2014-02-12 01:43:30 C 07 19 24.67 -12 43 27.7 u H21
2014-02-12 01:47:20 C 07 19 24.23 -12 43 29.0 u H21
2014-02-12 01:51:09 C 07 19 23.82 -12 43 29.8 u H21
2014-02-12 01:55:21 C 07 19 23.27 -12 43 30.3 u H21
2014-03-21 06:19:21 C 06 35 17.366 -11 47 12.78 L F51
2014-03-21 06:38:07 C 06 35 17.370 -11 47 08.88 L F51
2014-03-28 11:42:43 S 06 37 34.60 -11 13 29.1 L C51
2014-03-28 21:11:31 S 06 37 46.152 -11 11 42.47 L C51
2014-03-28 22:46:19 S 06 37 48.04 -11 11 23.0 L C51
2014-03-29 00:21:07 S 06 37 50.07 -11 11 06.4 L C51
2014-03-29 00:21:18 S 06 37 50.02 -11 11 04.9 L C51
2014-03-29 01:55:55 S 06 37 52.05 -11 10 47.7 L C51
2014-03-29 01:56:06 S 06 37 52.11 -11 10 47.4 L C51
2014-03-29 03:30:43 S 06 37 54.06 -11 10 29.1 L C51
2014-03-29 03:30:54 S 06 37 54.06 -11 10 29.8 L C51
2014-03-29 05:05:42 S 06 37 56.088 -11 10 12.22 L C51
2014-03-29 06:40:30 S 06 37 58.11 -11 09 55.1 L C51
2014-03-29 14:34:30 S 06 38 08.333 -11 08 25.66 L C51
2014-03-29 17:44:07 S 06 38 12.48 -11 07 49.9 L C51
2014-09-15 01:35:09 S 05 02 41.942 +59 34 44.44 L C51
2014-09-18 00:37:09 S 05 04 10.219 +59 50 31.88 L C51
2014-09-24 03:12:10 C 05 05 00.44 +60 20 41.7 c A24
2014-09-24 03:13:13 C 05 05 00.38 +60 20 42.7 c A24
2014-09-24 03:14:15 C 05 05 00.60 +60 20 43.2 c A24
2014-11-21 05:46:53 C 02 29 56.30 +43 52 44.5 q 703
2014-11-21 05:56:44 C 02 29 55.41 +43 52 25.7 q 703
2014-11-21 06:06:20 C 02 29 54.55 +43 52 07.6 q 703
2014-11-21 07:58:10 C 02 29 44.52 +43 48 32.0 q 703
2014-11-21 08:07:13 C 02 29 43.81 +43 48 14.5 q 703
2014-11-21 08:11:45 C 02 29 43.32 +43 48 06.5 q 703
2014-11-29 05:30:31 C 02 18 02.98 +37 52 00.2 q G96
2014-11-29 05:39:20 C 02 18 02.55 +37 51 44.2 q G96
2014-11-29 05:48:08 C 02 18 02.11 +37 51 28.0 q G96
2014-11-29 05:56:57 C 02 18 01.68 +37 51 12.0 q G96
2014-11-30 20:21:21 C 02 16 31.72 +36 42 01.1 q Z81
2014-11-30 21:01:46 C 02 16 30.00 +36 40 50.7 q Z81
2014-11-30 21:47:00 C 02 16 28.14 +36 39 29.5 q Z81
2014-12-07 09:13:54 C 02 12 52.237 +32 18 49.69 L F51
2014-12-07 09:32:00 C 02 12 51.929 +32 18 21.01 L F51
2014-12-07 09:50:04 C 02 12 51.621 +32 17 52.26 L F51
2014-12-09 22:48:04 C 02 12 25.72 +30 45 05.0 q 160
2014-12-09 22:50:59 C 02 12 25.70 +30 45 01.5 q 160