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
2016-11-11 11:45:48 C 09 15 54.07 +13 30 44.4 o 695
2016-11-11 11:49:01 C 09 15 54.28 +13 30 43.3 o 695
2016-11-11 11:52:16 C 09 15 54.49 +13 30 42.5 o 695
2016-12-04 12:14:37 C 09 51 02.09 +10 58 23.8 o 291
2016-12-04 12:33:19 C 09 51 03.17 +10 58 18.6 o 291
2016-12-04 12:52:01 C 09 51 04.23 +10 58 13.9 o 291
2016-12-27 12:20:00 C 10 23 14.05 +08 59 32.1 q G96
2016-12-27 12:26:14 C 10 23 14.46 +08 59 31.8 q G96
2016-12-27 12:32:30 C 10 23 14.71 +08 59 31.0 q G96
2016-12-27 12:38:45 C 10 23 15.07 +08 59 29.9 q G96
2017-01-03 14:51:06 C 10 33 19.511 +08 38 43.93 L F51
2017-01-03 15:07:31 C 10 33 20.425 +08 38 42.37 L F51
2017-01-03 15:23:53 C 10 33 21.337 +08 38 40.97 L F51
2017-01-03 15:40:16 C 10 33 22.243 +08 38 39.46 L F51
2017-01-07 10:31:27 C 10 39 06.78 +08 32 42.4 o 691
2017-01-07 10:54:20 C 10 39 08.18 +08 32 41.4 o 691
2017-01-07 11:17:14 C 10 39 09.51 +08 32 40.7 o 691
2017-01-23 08:18:22 C 11 14 53.88 +09 24 36.5 R G45
2017-01-23 08:25:13 C 11 14 54.88 +09 24 39.5 R G45
2017-01-23 08:31:35 C 11 14 55.80 +09 24 42.4 R G45
2017-01-23 08:39:02 C 11 14 56.87 +09 24 45.5 R G45
2017-01-23 08:46:27 C 11 14 57.94 +09 24 48.9 R G45
2017-01-23 08:54:16 C 11 14 59.07 +09 24 52.5 R G45
2017-01-25 02:28:07 C 11 22 06.41 +09 45 41.8 G40
2017-01-25 02:31:51 C 11 22 07.08 +09 45 43.8 G40
2017-01-25 08:17:37 C 11 23 13.39 +09 48 58.5 R G45
2017-01-25 08:17:43 C 11 23 13.40 +09 48 58.9 R G45
2017-01-25 08:24:51 C 11 23 14.69 +09 49 03.2 R G45
2017-01-25 08:24:57 C 11 23 14.74 +09 49 03.2 R G45
2017-01-25 08:32:09 C 11 23 16.03 +09 49 07.9 R G45
2017-01-25 08:32:15 C 11 23 16.03 +09 49 07.8 R G45
2017-01-25 08:39:20 C 11 23 17.35 +09 49 11.8 R G45
2017-01-25 08:39:26 C 11 23 17.36 +09 49 12.2 R G45
2017-01-26 03:50:13 C 11 27 10.63 +10 01 04.6 q 160
2017-01-26 03:53:11 C 11 27 11.22 +10 01 06.2 q 160
2017-01-26 03:56:08 C 11 27 11.82 +10 01 08.2 q 160
2017-01-27 03:30:04 C 11 32 38.06 +10 18 06.7 q 160
2017-01-27 03:33:08 C 11 32 38.76 +10 18 08.0 q 160
2017-01-27 03:36:11 C 11 32 39.45 +10 18 10.1 q 160
2017-01-27 14:36:20 C 11 35 27.81 +10 27 25.9 L T05
2017-01-27 15:30:47 C 11 35 41.29 +10 28 10.1 L T05
2017-01-27 15:50:05 C 11 35 46.14 +10 28 25.9 L T05
2017-01-27 16:04:28 C 11 35 49.74 +10 28 37.7 L T05
2017-01-29 09:16:58 C 11 48 31.17 +11 08 22.5 q 703
2017-01-29 09:23:09 C 11 48 33.22 +11 08 29.2 q 703
2017-01-29 09:29:13 C 11 48 35.28 +11 08 36.3 q 703
2017-01-29 09:35:23 C 11 48 37.31 +11 08 43.3 q 703
2017-01-29 10:21:52 C 11 48 52.93 +11 09 35.3 q G96
2017-01-29 10:28:09 C 11 48 55.03 +11 09 42.5 q G96
2017-01-29 10:34:21 C 11 48 57.12 +11 09 49.5 q G96
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)