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
1997-07-28 19:22:11 C 02 05 42.95 -29 33 55.0 z 422
1997-07-28 19:23:15 C 02 05 42.93 -29 33 59.9 z 422
1997-07-28 19:24:17 C 02 05 42.82 -29 34 05.0 z 422
1997-08-02 08:46:01 C 02 01 41.44 -36 46 34.2 z 861
1997-08-02 08:51:06 C 02 01 41.13 -36 46 51.5 z 861
1997-08-02 08:56:36 C 02 01 40.80 -36 47 07.4 z 861
1997-08-04 19:02:02 C 01 59 07.60 -39 48 57.0 z 422
1997-08-04 19:03:00 C 01 59 07.54 -39 49 00.2 z 422
1997-08-04 19:04:00 C 01 59 07.48 -39 49 02.6 z 422
1997-08-13 18:40:07 C 01 46 23.38 -47 50 01.9 z 422
1997-08-13 18:41:26 C 01 46 23.32 -47 50 04.2 z 422
1997-08-13 18:42:44 C 01 46 23.16 -47 50 05.7 z 422
1997-11-05 11:52:02 C 23 52 46.60 -37 44 50.9 z 381
1997-11-05 11:58:09 C 23 52 46.81 -37 44 42.5 z 381
1997-11-05 12:04:40 C 23 52 46.71 -37 44 38.6 z 381
1997-11-06 12:20:08 C 23 53 20.63 -37 19 11.1 z 381
1997-11-07 11:56:12 C 23 53 55.43 -36 54 26.0 z 381
1997-11-07 12:03:36 C 23 53 55.70 -36 54 17.9 z 381
1997-11-07 12:10:26 C 23 53 55.69 -36 54 12.8 z 381
1999-12-31 22:45:20 C 07 43 52.60 +12 55 19.4 18.4 c 461
1999-12-31 22:48:50 C 07 43 52.37 +12 55 22.3 c 461
1999-12-31 22:52:18 C 07 43 52.12 +12 55 25.2 c 461
2000-01-04 14:59:45 C 07 37 07.90 +14 09 59.9 360
2000-01-04 15:09:44 C 07 37 07.07 +14 10 08.6 360
2000-01-04 15:16:14 C 07 37 06.50 +14 10 14.4 360
2000-01-05 07:05:38 C 07 35 49.44 +14 24 18.9 18.1 a 704
2000-01-05 07:26:47 C 07 35 47.67 +14 24 38.0 19.1 a 704
2000-01-05 07:47:47 C 07 35 45.89 +14 24 57.2 18.7 a 704
2000-01-05 08:29:45 C 07 35 42.29 +14 25 34.8 18.3 a 704
2000-01-06 00:48:38 C 07 34 21.29 +14 40 17.1 118
2000-01-06 00:50:26 C 07 34 21.12 +14 40 18.5 118
2000-01-06 00:57:50 C 07 34 20.49 +14 40 25.2 118
2000-01-28 20:53:52 C 06 43 25.31 +23 51 25.7 c 118
2000-01-28 21:15:59 C 06 43 23.29 +23 51 47.4 c 118
2000-01-28 21:20:34 C 06 43 22.89 +23 51 51.9 c 118
2000-01-31 05:31:56 C 06 38 32.58 +24 46 16.0 17.9 c 704
2000-01-31 06:14:51 C 06 38 28.81 +24 46 56.8 18.4 c 704
2000-01-31 06:57:42 C 06 38 25.02 +24 47 37.1 18.7 c 704
2000-02-02 13:18:00 C 06 34 00.40 +25 38 31.9 360
2000-02-02 13:22:15 C 06 34 00.05 +25 38 35.8 360
2000-02-02 13:38:15 C 06 33 58.70 +25 38 50.3 360
2000-02-10 04:24:38 C 06 21 25.11 +28 16 43.7 z 711
2000-02-10 04:34:33 C 06 21 24.51 +28 16 52.2 z 711
2000-04-25 03:57:43 C 07 37 35.988 +40 22 52.93 645
2000-04-25 03:58:54 C 07 37 36.101 +40 22 52.64 645
2000-04-25 04:01:18 C 07 37 36.372 +40 22 52.90 645
2000-04-25 04:02:29 C 07 37 36.518 +40 22 53.04 645
2002-12-14 07:20:07 C 06 19 04.83 +03 47 15.7 19.1 c 704
2002-12-14 08:04:25 C 06 19 01.19 +03 47 32.2 19.1 c 704
2002-12-14 08:26:46 C 06 18 59.44 +03 47 41.7 19.4 c 704
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)