13651 (1997 BR)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar ⇩ Gaia
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3057196436 ± 2.00e+00
Semi-major axis (a)1.3355167428 AU ± 3.00e+00
Inclination (i)17.25106998° ± 4.00e+00
Long. of Asc. Node (Ω)116.63266649° ± 5.00e+00
Arg. of Perihelion (ω)133.85013400° ± 6.00e+00
Mean Anomaly (M)158.08218214° ± 2.39e-04
Mean Motion (n)0.6386137583°/day ± 2.15e+00
Perihelion dist (q)0.92722304 AU ± 3.39e+00
Aphelion dist (Q)1.74381045 AU ± 4.74e+00
Orbital Period1.54338404 yr ± 5.20e+00
NGA Modelr2
A2-5.66360100e-07 AU/d²
Physical Parameters
H (abs. magnitude)17.86
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-26
RMS Residual0.404″
Uncertainty0
Orbit TypeApollo
MOID0.015858 AU
Observations Used1064
Gaia Obs Used38
Oppositions13
Arc Total1980-2017
First Observation Used1980-02-09
Last Observation Used2026-01-13
Observations (1113)
Date Type RA Dec Mag Band Observatory
2002-12-14 08:48:57 C 06 18 57.63 +03 47 49.6 19.2 c 704
2003-01-11 05:28:19 C 05 22 53.02 +10 17 17.9 t 644
2003-01-11 07:02:02 C 05 22 46.04 +10 18 25.5 t 644
2003-01-11 08:38:55 C 05 22 38.85 +10 19 34.9 t 644
2003-01-18 08:43:47 C 05 11 52.08 +12 21 51.1 t 644
2003-01-18 09:15:08 C 05 11 50.28 +12 22 14.0 t 644
2003-01-18 09:46:41 C 05 11 48.49 +12 22 35.8 t 644
2003-01-27 03:53:03 C 05 02 18.17 +14 54 23.3 19.7 c 704
2003-01-27 04:36:57 C 05 02 16.56 +14 54 53.5 19.8 c 704
2003-01-27 04:59:00 C 05 02 15.68 +14 55 08.9 20.0 c 704
2003-01-27 05:20:54 C 05 02 14.91 +14 55 24.9 20.0 c 704
2003-01-27 06:52:10 C 05 02 11.80 +14 56 29.9 19.8 c 644
2003-01-27 07:24:55 C 05 02 10.62 +14 56 52.7 19.5 c 644
2003-01-27 07:55:46 C 05 02 09.60 +14 57 13.2 18.6 c 644
2003-01-28 03:46:39 C 05 01 31.00 +15 11 19.4 19.2 c 704
2003-01-28 04:08:36 C 05 01 30.27 +15 11 35.2 19.8 c 704
2003-01-28 04:30:31 C 05 01 29.48 +15 11 50.7 19.7 c 704
2003-01-28 04:52:20 C 05 01 28.71 +15 12 06.1 19.9 c 704
2003-01-28 05:14:09 C 05 01 27.96 +15 12 20.7 19.6 c 704
2005-11-30 08:39:00 C 05 09 03.74 -04 47 11.3 r 703
2005-11-30 08:53:26 C 05 09 02.48 -04 47 08.7 r 703
2005-11-30 09:08:00 C 05 09 01.22 -04 47 05.8 r 703
2005-11-30 09:22:41 C 05 08 59.96 -04 47 04.0 r 703
2006-01-31 02:32:16 C 03 59 03.98 +09 30 27.5 c 711
2006-01-31 02:42:55 C 03 59 04.01 +09 30 33.8 c 711
2006-01-31 02:53:50 C 03 59 04.17 +09 30 40.8 c 711
2007-12-15 12:41:56 C 13 10 07.11 +02 51 48.6 o 691
2007-12-15 13:00:00 C 13 10 09.88 +02 51 40.6 o 691
2007-12-15 13:18:05 C 13 10 12.59 +02 51 33.6 o 691
2008-01-11 12:13:58 C 14 59 32.19 -01 27 48.2 o 691
2008-01-11 12:32:04 C 14 59 35.47 -01 27 55.4 o 691
2008-01-11 12:50:11 C 14 59 38.74 -01 28 01.3 o 691
2008-01-30 12:27:46 C 16 27 15.30 -04 00 34.2 o 691
2008-01-30 12:46:35 C 16 27 18.92 -04 00 38.9 o 691
2008-01-30 13:05:02 C 16 27 22.68 -04 00 44.9 o 691
2008-09-20 14:59:28 C 04 51 18.062 -05 56 41.10 568
2008-09-20 15:17:37 C 04 51 18.457 -05 56 49.85 568
2008-11-06 09:24:40 C 04 22 31.04 -14 09 38.3 r 703
2008-11-06 09:35:00 C 04 22 30.28 -14 09 40.1 r 703
2008-11-06 09:45:21 C 04 22 29.49 -14 09 40.6 r 703
2008-11-06 09:55:44 C 04 22 28.66 -14 09 42.8 r 703
2008-11-21 07:41:22 C 03 53 39.12 -14 09 06.9 r 703
2008-11-21 07:51:50 C 03 53 38.18 -14 09 05.9 r 703
2008-11-21 08:02:24 C 03 53 37.32 -14 09 04.1 r 703
2008-11-21 08:12:48 C 03 53 36.49 -14 09 01.8 r 703
2008-11-24 07:03:20 C 03 47 49.02 -13 52 33.5 c G92
2008-11-24 07:23:38 C 03 47 47.35 -13 52 28.5 c G92
2008-11-24 07:43:55 C 03 47 45.62 -13 52 23.4 c G92
2011-01-04 11:53:00 C 12 53 42.36 +07 14 29.2 r 703
2011-01-04 12:03:54 C 12 53 43.94 +07 14 30.6 r 703
Radar Observations (2)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
1997-07-01 20:40:00 375473.1 0.5 Hz 8510 -14 -14
2014-06-27 11:19:00 -13963.7631 0.07 Hz 2380 -1 -1
Station codes
-14 DSS-14 Goldstone (70-m) -1 Arecibo (305-m, 1963–2020)