511684 (2015 BN509)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5684477447 ± 1.02e-07
Semi-major axis (a)1.0068564876 AU ± 6.48e-09
Inclination (i)4.15644872° ± 2.82e-06
Long. of Asc. Node (Ω)120.06180332° ± 1.29e-05
Arg. of Perihelion (ω)143.22233890° ± 1.57e-05
Mean Anomaly (M)196.44512386° ± 1.24e-05
Mean Motion (n)0.9755755715°/day ± 9.42e-09
Perihelion dist (q)0.43451119 AU ± 1.02e-07
Aphelion dist (Q)1.57920179 AU ± 1.03e-07
Orbital Period1.01030234 yr ± 9.75e-09
NGA Modelr2
A26.82337960e-14 ± 1.03e-14 AU/d²
Physical Parameters
H (abs. magnitude)20.77
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.291″
Uncertainty0
Orbit TypeApollo
MOID0.024692 AU
Observations Used560
Radar Obs Used6
Oppositions1
Arc Total2005-2026
First Observation Used2005-12-03
Last Observation Used2026-01-09
Observations (654)
Date Type RA Dec Mag Band Observatory
2015-12-17 13:40:41 C 10 22 21.719 +08 46 35.73 L F51
2015-12-17 13:54:38 C 10 22 22.714 +08 46 31.46 L F51
2016-01-04 14:18:41 C 10 58 18.486 +06 35 36.97 L F51
2016-01-04 14:36:01 C 10 58 20.122 +06 35 31.50 L F51
2016-01-04 14:53:22 C 10 58 21.752 +06 35 26.09 L F51
2016-01-04 15:10:44 C 10 58 23.394 +06 35 20.74 L F51
2016-01-05 14:49:07 C 11 00 47.616 +06 27 58.25 t 568
2016-01-05 14:50:59 C 11 00 47.793 +06 27 57.66 t 568
2016-01-05 14:52:29 C 11 00 47.948 +06 27 57.16 t 568
2016-01-10 12:10:34 C 11 14 04.21 +05 49 49.3 R G45
2016-01-10 12:22:11 C 11 14 05.57 +05 49 45.2 R G45
2016-01-10 12:27:40 C 11 14 06.18 +05 49 42.8 R G45
2016-01-10 12:44:06 C 11 14 08.12 +05 49 37.7 R G45
2016-01-10 13:04:52 C 11 14 10.60 +05 49 30.0 R G45
2016-01-13 13:25:26 C 11 23 56.933 +05 24 04.11 L F51
2016-01-13 13:41:29 C 11 23 59.164 +05 23 58.54 L F51
2016-01-13 20:00:12 C 11 24 54.48 +05 21 32.8 q D29
2016-01-13 20:31:57 C 11 24 58.95 +05 21 21.0 q D29
2016-01-13 21:03:42 C 11 25 03.45 +05 21 08.9 q D29
2016-01-18 12:04:06 C 11 44 08.68 +04 35 14.0 o 691
2016-01-18 12:08:00 C 11 44 09.41 +04 35 12.1 o 691
2016-01-18 12:11:55 C 11 44 10.12 +04 35 10.6 o 691
2016-01-20 11:51:53 C 11 54 30.60 +04 11 28.4 q 703
2016-01-20 12:12:08 C 11 54 35.23 +04 11 17.8 q 703
2016-01-20 12:22:15 C 11 54 37.49 +04 11 12.3 q 703
2016-01-21 15:12:23 C 12 01 14.701 +03 56 23.64 L F51
2016-01-21 15:44:14 C 12 01 22.617 +03 56 04.91 L F51
2016-01-28 06:21:09 C 12 59 39.43 +01 47 10.5 t W86
2016-01-28 06:25:05 C 12 59 41.41 +01 47 06.0 t W86
2016-01-28 06:29:02 C 12 59 43.44 +01 47 01.3 t W86
2016-01-28 06:33:01 C 12 59 45.41 +01 46 56.8 t W86
2016-01-28 06:36:58 C 12 59 47.41 +01 46 52.2 t W86
2016-01-28 06:40:54 C 12 59 49.41 +01 46 47.7 t W86
2016-01-28 06:44:53 C 12 59 51.42 +01 46 43.1 t W86
2016-01-28 06:48:53 C 12 59 53.45 +01 46 38.6 t W86
2016-01-28 06:52:49 C 12 59 55.43 +01 46 34.1 t W86
2016-02-03 17:05:21 S 14 59 00.384 -02 37 37.06 L C51
2016-02-03 18:39:47 S 15 00 41.263 -02 41 10.36 L C51
2016-02-05 11:11:48 C 15 46 44.36 -04 14 56.5 o 691
2016-02-05 11:14:23 C 15 46 47.37 -04 15 02.2 o 691
2016-02-05 11:16:58 C 15 46 50.42 -04 15 08.0 o 691
2016-02-06 04:20:20 C 16 07 16.78 -04 53 33.9 q 160
2016-02-06 04:22:44 C 16 07 19.67 -04 53 39.9 q 160
2016-02-06 04:25:08 C 16 07 22.52 -04 53 42.0 q 160
2016-11-11 11:23:12 C 09 15 52.59 +13 30 50.8 o 695
2016-11-11 11:25:51 C 09 15 52.77 +13 30 49.9 o 695
2016-11-11 11:29:04 C 09 15 52.97 +13 30 48.9 o 695
2016-11-11 11:32:19 C 09 15 53.20 +13 30 48.1 o 695
2016-11-11 11:35:48 C 09 15 53.42 +13 30 47.1 o 695
2016-11-11 11:42:18 C 09 15 53.84 +13 30 45.3 o 695
Radar Observations (7)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2017-02-05 08:19:00 175255.5269 0.05 Hz 2380 -1 -1
2017-02-05 08:48:00 50173360.33 4 us 2380 -1 -1
2017-02-05 09:00:00 50120970.13 0.5 us 2380 -1 -1
2017-02-06 09:44:00 114912.8058 0.1 Hz 2380 -1 -1
2017-02-07 10:13:00 41854278.24 0.5 us 2380 -1 -1
2018-02-08 08:40:00 36146165.35 2 us 8560 -14 -14
2018-02-10 01:20:00 32960780.129 1 us 8560 -14 -14
Station codes
-14 DSS-14 Goldstone (70-m) -1 Arecibo (305-m, 1963–2020)