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
2017-01-29 10:40:39 C 11 48 59.24 +11 09 56.6 q G96
2017-01-30 01:00:43 C 11 54 23.86 +11 26 28.4 q 046
2017-01-30 01:02:19 C 11 54 24.47 +11 26 30.5 q 046
2017-01-30 01:03:20 C 11 54 24.86 +11 26 31.7 q 046
2017-01-30 01:04:18 C 11 54 25.19 +11 26 33.1 q 046
2017-01-30 01:05:22 C 11 54 25.65 +11 26 34.9 q 046
2017-01-30 01:06:22 C 11 54 26.03 +11 26 35.7 q 046
2017-01-30 10:42:18 C 11 58 21.06 +11 39 09.2 q H45
2017-01-30 10:43:24 C 11 58 21.51 +11 39 10.5 q H45
2017-01-30 10:44:43 C 11 58 22.06 +11 39 12.2 q H45
2017-01-30 10:45:35 C 11 58 22.41 +11 39 13.5 q H45
2017-01-30 10:46:20 C 11 58 22.72 +11 39 14.3 q H45
2017-01-30 10:47:17 C 11 58 23.09 +11 39 15.4 q H45
2017-01-30 10:48:16 C 11 58 23.50 +11 39 16.7 q H45
2017-01-30 10:49:16 C 11 58 23.91 +11 39 18.1 q H45
2017-01-30 11:33:34 C 11 58 47.515 +11 40 36.01 L F51
2017-01-30 11:34:29 C 11 58 47.893 +11 40 37.28 L F51
2017-01-30 11:50:40 C 11 58 54.565 +11 40 59.42 L F51
2017-01-30 11:51:37 C 11 58 54.964 +11 41 00.74 L F51
2017-01-30 12:07:50 C 11 59 01.637 +11 41 22.82 L F51
2017-01-30 12:08:47 C 11 59 02.035 +11 41 24.19 L F51
2017-01-30 12:25:05 C 11 59 08.746 +11 41 46.33 L F51
2017-01-30 12:26:02 C 11 59 09.148 +11 41 47.67 L F51
2017-01-31 14:48:55 C 12 11 56.50 +12 20 36.4 L T05
2017-01-31 15:09:04 C 12 12 06.96 +12 21 08.2 L T05
2017-01-31 15:34:56 C 12 12 20.50 +12 21 49.5 L T05
2017-01-31 15:59:34 C 12 12 33.47 +12 22 28.2 L T05
2017-01-31 22:46:57 C 12 16 33.53 +12 33 07.7 q Z45
2017-01-31 22:48:57 C 12 16 34.79 +12 33 25.5 q Z45
2017-01-31 22:51:05 C 12 16 35.93 +12 33 16.1 q Z45
2017-02-01 08:58:00 C 12 22 47.25 +12 51 21.0 q 703
2017-02-01 09:04:28 C 12 22 51.32 +12 51 33.0 q 703
2017-02-01 09:10:56 C 12 22 55.29 +12 51 44.7 q 703
2017-02-01 09:17:27 C 12 22 59.38 +12 51 56.8 q 703
2017-12-24 11:31:44 C 10 02 30.89 +10 24 06.9 U G96
2017-12-24 11:39:09 C 10 02 31.16 +10 24 06.0 U G96
2017-12-24 11:53:58 C 10 02 31.68 +10 24 04.2 U G96
2018-01-09 20:25:05 C 10 13 24.82 +10 51 50.2 q D29
2018-01-09 20:50:33 C 10 13 25.17 +10 51 57.5 q D29
2018-01-14 08:31:58 C 10 14 48.11 +11 30 19.9 U G96
2018-01-14 08:39:22 C 10 14 48.12 +11 30 23.4 U G96
2018-01-14 08:46:47 C 10 14 48.12 +11 30 26.9 U G96
2018-01-14 08:54:11 C 10 14 48.12 +11 30 30.7 U G96
2018-01-15 11:11:59 C 10 14 59.208 +11 43 28.15 U F51
2018-01-15 11:29:43 C 10 14 59.162 +11 43 37.62 U F51
2018-01-17 14:13:06 C 10 15 05.88 +12 13 27.3 U T05
2018-01-17 14:17:49 C 10 15 05.89 +12 13 29.1 U T05
2018-01-17 14:41:16 C 10 15 05.58 +12 13 46.2 U T05
2018-01-17 14:49:59 C 10 15 05.61 +12 13 52.0 U T05
2018-01-21 13:46:38 C 10 14 27.70 +13 33 07.5 U T05
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)