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
2023-01-14 08:00:11 C 07 33 37.379 +19 47 43.37 V 703
2023-12-16 10:55:20 C 08 31 34.386 +15 18 23.36 X F51
2023-12-16 11:14:17 C 08 31 33.434 +15 18 27.23 X F51
2023-12-16 11:32:06 C 08 31 32.561 +15 18 30.52 X F51
2023-12-16 11:59:46 C 08 31 31.190 +15 18 36.15 X F51
2023-12-17 09:20:57 C 08 30 29.812 +15 22 45.77 V G96
2023-12-17 09:28:22 C 08 30 29.405 +15 22 47.50 V G96
2023-12-17 09:39:04 C 08 30 28.822 +15 22 49.66 V G96
2024-01-07 15:47:30 C 07 38 48.94 +18 41 34.3 V O18
2024-01-07 15:56:38 C 07 38 47.47 +18 41 39.4 V O18
2024-01-07 16:05:45 C 07 38 45.95 +18 41 44.6 V O18
2024-01-10 07:59:46 C 07 28 01.157 +19 17 43.22 V G96
2024-01-10 08:14:31 C 07 27 58.489 +19 17 51.22 V G96
2024-01-10 08:21:55 C 07 27 57.150 +19 17 55.50 V G96
2024-01-16 08:55:26 C 07 00 26.060 +20 40 09.96 V U68
2024-01-16 09:00:15 C 07 00 25.066 +20 40 11.87 V U68
2024-01-16 09:25:59 C 07 00 19.683 +20 40 26.49 V U68
2024-01-16 09:30:47 C 07 00 18.693 +20 40 29.23 V U68
2024-12-06 11:23:09 C 08 26 43.036 +15 18 22.78 X F52
2024-12-06 11:41:37 C 08 26 42.518 +15 18 24.34 X F52
2024-12-06 12:00:04 C 08 26 41.948 +15 18 26.00 X F52
2024-12-06 12:18:38 C 08 26 41.418 +15 18 27.75 X F52
2024-12-08 11:46:10 C 08 25 17.671 +15 23 08.27 X F52
2024-12-08 11:59:05 C 08 25 17.223 +15 23 10.05 X F52
2024-12-08 12:12:04 C 08 25 16.745 +15 23 11.34 X F52
2024-12-08 12:25:07 C 08 25 16.281 +15 23 12.74 X F52
2024-12-24 10:19:47 C 08 00 51.786 +16 50 28.26 X F52
2024-12-24 10:31:56 C 08 00 50.512 +16 50 32.62 X F52
2024-12-24 10:55:56 C 08 00 48.013 +16 50 41.36 X F52
2024-12-27 08:52:14 C 07 53 16.937 +17 16 47.06 V V00
2024-12-27 09:01:16 C 07 53 15.864 +17 16 50.77 V V00
2024-12-27 09:10:14 C 07 53 14.780 +17 16 54.30 V V00
2024-12-27 09:19:13 C 07 53 13.711 +17 16 57.83 V V00
2025-01-03 07:51:02 C 07 31 02.536 +18 29 45.56 V G96
2025-01-03 07:58:25 C 07 31 01.369 +18 29 49.09 V G96
2025-01-03 08:05:50 C 07 31 00.196 +18 29 52.44 V G96
2025-01-06 15:35:32 C 07 18 21.08 +19 08 00.2 V D29
2025-01-06 15:55:54 C 07 18 17.58 +19 08 10.0 V D29
2025-01-06 16:16:16 C 07 18 14.05 +19 08 20.0 V D29
2025-02-21 06:14:46 C 04 24 48.939 +23 25 42.79 X F51
2025-02-21 06:42:15 C 04 24 46.488 +23 25 44.32 X F51
2025-02-21 06:55:55 C 04 24 45.298 +23 25 44.61 X F51
2025-12-13 11:29:35 C 08 07 13.918 +16 06 37.93 X F52
2025-12-13 11:48:09 C 08 07 12.683 +16 06 41.82 X F52
2025-12-13 12:06:49 C 08 07 11.462 +16 06 45.48 X F52
2025-12-13 12:25:24 C 08 07 10.228 +16 06 49.13 X F52
2025-12-14 09:52:31 C 08 05 48.118 +16 11 10.51 X F51
2025-12-14 10:11:16 C 08 05 46.833 +16 11 14.53 X F51
2025-12-14 10:30:01 C 08 05 45.538 +16 11 18.73 X F51
2025-12-14 10:48:47 C 08 05 44.227 +16 11 22.98 X F51
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)