2017 BL31

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.8512188684 ± 5.54e-08
Semi-major axis (a)2.4625555800 AU ± 1.45e-08
Inclination (i)24.78720079° ± 1.60e-05
Long. of Asc. Node (Ω)103.10243549° ± 6.51e-06
Arg. of Perihelion (ω)132.26244670° ± 1.40e-05
Mean Anomaly (M)73.13474507° ± 3.49e-06
Mean Motion (n)0.2550546315°/day ± 2.25e-09
Perihelion dist (q)0.36638181 AU ± 1.36e-07
Aphelion dist (Q)4.55872935 AU ± 1.39e-07
Orbital Period3.86437320 yr ± 3.41e-08
Physical Parameters
H (abs. magnitude)19.00
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.194″
Uncertainty0
Orbit TypeApollo
MOID0.142241 AU
Observations Used107
Oppositions5
Arc Total2017-2024
First Observation Used2017-01-26
Last Observation Used2024-12-27
Observations (113)
Date Type RA Dec Mag Band Observatory
2020-12-26 04:46:55 C 07 26 54.49 +19 35 39.2 V G96
2020-12-26 04:54:17 C 07 26 53.79 +19 35 45.1 V G96
2020-12-26 05:01:38 C 07 26 53.09 +19 35 51.4 V G96
2020-12-26 05:09:00 C 07 26 52.36 +19 35 57.4 V G96
2021-01-03 09:45:34 C 07 03 09.64 +22 48 13.2 V 703
2021-01-03 09:51:57 C 07 03 08.73 +22 48 19.5 V 703
2021-01-03 10:04:44 C 07 03 06.87 +22 48 32.7 V 703
2021-01-04 08:06:10 C 06 59 44.67 +23 14 02.5 V G96
2021-01-04 08:13:38 C 06 59 43.47 +23 14 11.2 V G96
2021-01-04 08:21:07 C 06 59 42.26 +23 14 19.8 V G96
2021-01-04 08:28:37 C 06 59 41.06 +23 14 28.6 V G96
2021-01-04 09:52:04 C 06 59 27.63 +23 16 06.1 V I52
2021-01-04 09:57:54 C 06 59 26.69 +23 16 12.6 V I52
2021-01-04 10:28:27 C 06 59 21.79 +23 16 48.2 V I52
2021-01-10 21:39:16 C 06 30 25.03 +26 37 11.4 V K87
2021-01-10 21:44:24 C 06 30 23.90 +26 37 17.9 V K87
2021-01-11 01:41:07 C 06 29 32.73 +26 42 50.7 V W34
2021-01-11 01:46:47 C 06 29 31.47 +26 42 58.9 V W34
2021-01-11 01:52:41 C 06 29 30.15 +26 43 06.9 V W34
2021-01-11 21:34:09 C 06 25 05.37 +27 10 44.3 V 130
2021-01-11 21:38:38 C 06 25 04.33 +27 10 50.8 V 130
2021-01-11 21:43:16 C 06 25 03.27 +27 10 57.4 V 130
2021-01-17 02:36:34 C 05 53 05.91 +30 11 11.6 V W33
2021-01-17 02:42:51 C 05 53 04.11 +30 11 20.6 V W33
2021-01-17 02:50:10 C 05 53 01.98 +30 11 31.4 V W33
2021-01-18 19:15:23 C 05 41 10.45 +31 09 21.4 V 130
2021-01-18 19:19:13 C 05 41 09.29 +31 09 27.1 V 130
2021-01-18 19:23:03 C 05 41 08.11 +31 09 32.3 V 130
2021-01-18 19:26:52 C 05 41 06.93 +31 09 37.5 V 130
2021-01-20 00:33:37 C 05 32 07.31 +31 50 24.8 V W46
2021-01-20 00:43:18 C 05 32 04.18 +31 50 39.0 V W46
2021-01-20 00:56:00 C 05 32 00.12 +31 50 56.3 V W46
2021-01-20 23:33:29 C 05 24 45.37 +32 21 44.5 V W33
2021-01-20 23:42:12 C 05 24 42.53 +32 21 57.4 V W33
2021-01-20 23:50:54 C 05 24 39.64 +32 22 09.1 V W33
2021-01-23 21:58:38 C 05 00 50.36 +33 51 11.1 V Z99
2021-01-23 22:04:45 C 05 00 48.10 +33 51 18.4 V Z99
2021-01-23 22:10:50 C 05 00 45.88 +33 51 25.9 V Z99
2021-01-23 22:16:54 C 05 00 43.71 +33 51 32.7 V Z99
2021-01-31 04:56:07 C 03 55 05.84 +36 25 26.5 V G96
2021-01-31 05:03:06 C 03 55 03.08 +36 25 29.9 V G96
2021-01-31 05:10:05 C 03 55 00.31 +36 25 33.5 V G96
2021-01-31 05:17:03 C 03 54 57.55 +36 25 36.9 V G96
2021-02-01 06:48:26 C 03 44 59.68 +36 37 43.6 V T08
2021-02-01 06:54:26 C 03 44 57.31 +36 37 46.3 V T08
2021-02-01 07:04:31 C 03 44 53.28 +36 37 50.1 V T08
2021-02-01 07:21:18 C 03 44 46.59 +36 37 56.5 V T08
2021-02-05 06:23:20 C 03 07 49.99 +36 56 47.5 V T08
2021-02-05 06:28:41 C 03 07 47.91 +36 56 47.6 V T08
2021-02-05 06:37:20 C 03 07 44.50 +36 56 47.0 V T08