856955 (2012 BT23)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5986301917 ± 4.76e-09
Semi-major axis (a)1.9769034985 AU ± 8.60e-10
Inclination (i)9.08258474° ± 2.48e-06
Long. of Asc. Node (Ω)182.08399877° ± 1.25e-05
Arg. of Perihelion (ω)43.51935050° ± 1.22e-05
Mean Anomaly (M)321.28960633° ± 8.48e-07
Mean Motion (n)0.3545961951°/day ± 2.31e-10
Perihelion dist (q)0.79346938 AU ± 9.42e-09
Aphelion dist (Q)3.16033762 AU ± 9.51e-09
Orbital Period2.77957377 yr ± 1.81e-09
Physical Parameters
H (abs. magnitude)18.93
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.236″
Uncertainty0
Orbit TypeApollo
MOID0.046856 AU
Observations Used604
Radar Obs Used1
Oppositions9
Arc Total1998-2026
First Observation Used1998-07-19
Last Observation Used2026-01-17
Observations (646)
Date Type RA Dec Mag Band Observatory
2012-02-18 06:36:23 C 07 21 18.54 -06 52 10.0 18.3 c 704
2012-02-18 07:00:52 C 07 21 14.30 -06 52 02.5 o 695
2012-02-18 07:02:55 C 07 21 13.94 -06 52 01.9 o 695
2012-02-18 07:03:49 C 07 21 13.78 -06 52 01.6 o 695
2012-02-18 07:04:41 C 07 21 13.62 -06 52 01.4 o 695
2012-02-19 04:45:34 C 07 17 29.05 -06 45 21.7 v H21
2012-02-19 04:52:04 C 07 17 27.86 -06 45 19.5 v H21
2012-02-19 04:59:43 C 07 17 26.46 -06 45 16.9 v H21
2012-02-20 05:34:50 C 07 13 02.81 -06 36 35.2 u H45
2012-02-20 05:37:12 C 07 13 02.35 -06 36 34.5 u H45
2012-02-20 05:48:52 C 07 13 00.18 -06 36 30.0 u H45
2012-02-20 06:06:01 C 07 12 56.96 -06 36 23.2 u H45
2012-02-20 06:15:36 C 07 12 55.08 -06 36 20.0 u H45
2012-02-20 06:17:27 C 07 12 54.75 -06 36 19.1 u H45
2012-02-20 20:37:15 C 07 10 18.71 -06 30 47.5 w I99
2012-02-20 20:44:37 C 07 10 17.31 -06 30 44.1 w I99
2012-02-20 20:51:53 C 07 10 15.86 -06 30 42.2 w I99
2012-02-21 00:22:46 C 07 09 37.23 -06 29 15.5 u I17
2012-02-21 00:44:34 C 07 09 33.03 -06 29 07.2 u I17
2012-02-21 01:07:33 C 07 09 28.52 -06 28 56.8 u I17
2012-02-21 03:02:30 C 07 09 07.31 -06 28 05.5 o G48
2012-02-21 03:03:53 C 07 09 07.05 -06 28 04.9 o G48
2012-02-21 03:05:11 C 07 09 06.79 -06 28 04.2 o G48
2012-02-21 03:06:33 C 07 09 06.49 -06 28 04.1 o G48
2012-02-21 03:07:55 C 07 09 06.26 -06 28 03.4 o G48
2012-02-21 19:47:53 C 07 05 56.47 -06 20 57.8 c 560
2012-02-21 19:49:20 C 07 05 56.19 -06 20 57.2 c 560
2012-02-21 19:50:46 C 07 05 55.91 -06 20 56.5 c 560
2012-02-21 21:13:44 C 07 05 39.39 -06 20 19.4 t 130
2012-02-21 21:16:50 C 07 05 38.76 -06 20 18.1 t 130
2012-02-21 21:20:53 C 07 05 37.95 -06 20 15.8 t 130
2012-02-21 21:23:04 C 07 05 37.51 -06 20 14.7 t 130
2012-02-22 03:12:24 C 07 04 30.46 -06 17 32.8 u H21
2012-02-22 03:16:27 C 07 04 29.63 -06 17 30.8 u H21
2012-02-22 03:20:30 C 07 04 28.82 -06 17 29.0 u H21
2012-02-22 03:24:32 C 07 04 28.00 -06 17 27.1 u H21
2012-02-22 03:28:54 C 07 04 27.11 -06 17 25.1 u H21
2012-02-22 03:33:47 C 07 04 26.13 -06 17 22.7 u H21
2012-02-22 06:12:16 C 07 03 54.25 -06 16 05.1 u H45
2012-02-22 06:45:38 C 07 03 47.53 -06 15 50.0 u H45
2012-02-22 06:46:46 C 07 03 47.30 -06 15 49.5 u H45
2012-02-22 06:51:29 C 07 03 46.35 -06 15 47.4 u H45
2012-02-22 06:52:43 C 07 03 46.08 -06 15 46.0 u H45
2012-02-22 06:53:42 C 07 03 45.93 -06 15 45.8 u H45
2012-02-22 20:53:00 C 07 01 02.35 -06 09 05.2 C91
2012-02-22 21:04:59 C 07 00 59.82 -06 08 59.6 C91
2012-02-23 19:00:10 C 06 56 35.43 -05 57 32.1 u A81
2012-02-23 19:02:53 C 06 56 34.83 -05 57 30.0 u A81
2012-02-23 19:08:18 C 06 56 33.72 -05 57 27.4 u A81
2012-02-23 19:13:42 C 06 56 32.52 -05 57 24.3 u A81
Radar Observations (1)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2012-03-25 18:04:00 130832732.43 8 us 2380 -1 -1
Station codes
-1 Arecibo (305-m, 1963–2020)