2021 BT

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6325934000
Semi-major axis (a)2.3420697000 AU
Inclination (i)5.58941000°
Long. of Asc. Node (Ω)107.30988000°
Arg. of Perihelion (ω)82.81898000°
Mean Anomaly (M)108.62392000°
Mean Motion (n)0.2749820500°/day
Perihelion dist (q)0.86049190 AU
Aphelion dist (Q)3.82364750 AU
Orbital Period3.58426180 yr
Physical Parameters
H (abs. magnitude)23.38
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date
RMS Residual0.510″
Uncertainty9
Orbit TypeApollo
MOID0.053793 AU
Observations Used19
Oppositions1
Arc Total
First Observation Used
Last Observation Used2021-01-22
Observations (59)
Date Type RA Dec Mag Band Observatory
2021-01-16 09:09:41 C 08 11 23.861 +24 04 42.50 U F51
2021-01-16 09:27:39 C 08 11 24.284 +24 05 11.28 U F51
2021-01-16 09:45:38 C 08 11 24.699 +24 05 39.92 U F51
2021-01-17 09:51:57 C 08 12 19.284 +24 45 20.48 V 568
2021-01-17 09:53:22 C 08 12 19.320 +24 45 22.91 V 568
2021-01-17 09:54:47 C 08 12 19.356 +24 45 25.39 V 568
2021-01-17 20:24:02 C 08 12 46.29 +25 03 24.0 V I93
2021-01-17 20:29:13 C 08 12 46.53 +25 03 32.7 V I93
2021-01-17 20:35:26 C 08 12 46.76 +25 03 44.2 V I93
2021-01-18 03:53:43 C 08 13 05.48 +25 17 09.1 q 858
2021-01-18 04:03:43 C 08 13 05.79 +25 17 27.5 q 858
2021-01-18 04:14:54 C 08 13 06.18 +25 17 48.8 q 858
2021-01-18 05:29:51 C 08 13 08.89 +25 20 12.9 V I52
2021-01-18 05:30:57 C 08 13 08.92 +25 20 14.8 V I52
2021-01-18 05:34:07 C 08 13 09.02 +25 20 20.8 V I52
2021-01-18 05:35:13 C 08 13 09.07 +25 20 22.8 V I52
2021-01-22 03:40:36 C 08 18 16.96 +28 53 13.8 u H21
2021-01-22 03:46:13 C 08 18 17.29 +28 53 29.6 u H21
2021-01-22 03:50:25 C 08 18 17.53 +28 53 41.5 u H21
2021-01-22 03:55:19 C 08 18 17.76 +28 53 55.3 u H21
2021-01-22 21:34:57 C 08 19 35.25 +29 44 28.4 V B49
2021-01-22 21:51:27 C 08 19 36.31 +29 45 19.0 V B49
2021-01-22 22:07:58 C 08 19 37.39 +29 46 09.8 V B49
2021-01-31 07:27:31 C 08 56 53.01 +47 40 36.6 V I52
2021-01-31 07:28:57 C 08 56 53.56 +47 40 49.4 V I52
2021-01-31 07:31:18 C 08 56 54.48 +47 41 10.9 V I52
2021-01-31 07:32:43 C 08 56 55.03 +47 41 23.6 V I52
2021-01-31 21:56:07 C 09 03 51.39 +49 57 35.3 V B49
2021-01-31 22:04:44 C 09 03 55.56 +49 59 02.8 V B49
2021-01-31 22:13:21 C 09 03 59.72 +50 00 29.1 V B49
2021-02-02 05:33:19 C 09 24 59.22 +55 41 44.3 u H21
2021-02-02 05:35:33 C 09 25 01.01 +55 42 10.8 u H21
2021-02-02 05:39:45 C 09 25 04.36 +55 43 00.6 u H21
2021-02-02 05:43:47 C 09 25 07.59 +55 43 48.8 u H21
2021-02-03 06:24:04 C 09 51 42.57 +60 52 09.5 u H21
2021-02-03 06:27:25 C 09 51 46.86 +60 52 53.2 u H21
2021-02-03 06:30:17 C 09 51 50.55 +60 53 30.6 u H21
2021-02-03 06:33:09 C 09 51 54.23 +60 54 08.3 u H21
2021-02-03 06:36:02 C 09 51 57.90 +60 54 46.1 u H21
2021-02-03 06:37:56 C 09 52 00.36 +60 55 11.1 u H21
2021-02-04 17:42:44 C 11 03 37.45 +68 28 31.2 V 033
2021-02-04 17:43:14 C 11 03 38.95 +68 28 37.3 V 033
2021-02-04 17:43:43 C 11 03 40.42 +68 28 43.4 V 033
2021-02-04 22:30:52 C 11 18 31.36 +69 26 16.6 V 033
2021-02-04 22:31:27 C 11 18 33.31 +69 26 23.6 V 033
2021-02-04 22:32:01 C 11 18 35.11 +69 26 30.1 V 033
2021-02-05 13:52:20 C 12 17 46.77 +71 53 16.0 V T08
2021-02-05 13:57:01 C 12 18 07.03 +71 53 48.9 V T08
2021-02-05 14:04:59 C 12 18 41.75 +71 54 46.4 V T08
2021-02-05 14:22:54 C 12 19 59.24 +71 56 49.1 V T08