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
2021-02-11 11:18:01 S 04 52 58.730 +27 37 13.40 L C51
2021-02-11 14:26:20 S 04 51 41.542 +27 36 58.79 L C51
2021-02-15 03:11:10 C 04 17 54.32 +27 15 14.6 V V00
2021-02-15 03:18:48 C 04 17 51.26 +27 15 11.3 V V00
2021-02-15 03:26:24 C 04 17 48.24 +27 15 07.9 V V00
2021-02-15 03:34:01 C 04 17 45.21 +27 15 04.5 V V00
2022-01-01 18:11:14 C 08 40 00.34 +15 51 39.3 V D29
2022-01-01 18:51:58 C 08 39 56.49 +15 51 58.7 V D29
2022-01-06 08:04:48 C 08 28 31.71 +16 50 33.5 V G96
2022-01-06 08:12:13 C 08 28 30.78 +16 50 38.2 V G96
2022-01-06 08:20:45 C 08 28 29.72 +16 50 43.5 V G96
2022-01-06 08:28:11 C 08 28 28.78 +16 50 47.4 V G96
2022-01-08 07:05:26 C 08 22 34.04 +17 20 02.7 V 703
2022-01-08 07:28:07 C 08 22 31.00 +17 20 19.8 V 703
2022-01-13 07:25:13 C 08 04 03.49 +18 46 36.4 V G96
2022-01-13 07:32:01 C 08 04 02.29 +18 46 41.8 V G96
2022-01-13 07:38:50 C 08 04 01.04 +18 46 47.0 V G96
2022-01-13 07:45:39 C 08 03 59.79 +18 46 52.4 V G96
2022-01-27 04:37:37 C 06 46 22.06 +23 24 55.0 V G96
2022-01-27 04:45:44 C 06 46 19.65 +23 25 01.2 V G96
2022-01-27 04:53:53 C 06 46 17.26 +23 25 07.3 V G96
2022-01-27 05:02:01 C 06 46 14.85 +23 25 13.7 V G96
2022-01-30 08:46:57 C 06 23 58.30 +24 18 40.1 V T05
2022-01-30 08:52:12 C 06 23 56.66 +24 18 43.2 V T05
2022-01-30 09:00:14 C 06 23 54.17 +24 18 48.7 V T05
2022-01-30 09:51:17 C 06 23 38.34 +24 19 20.1 V T05
2022-02-21 05:53:07 C 03 55 48.677 +25 13 28.03 U F52
2022-02-21 06:13:25 C 03 55 43.734 +25 13 20.81 U F52
2022-02-21 06:33:40 C 03 55 38.766 +25 13 13.52 U F52
2022-02-21 06:53:58 C 03 55 33.853 +25 13 06.14 U F52
2022-12-25 09:14:20 C 08 34 53.641 +15 33 21.96 V G96
2022-12-25 09:21:47 C 08 34 53.108 +15 33 24.48 V G96
2022-12-25 09:29:11 C 08 34 52.550 +15 33 26.82 V G96
2022-12-25 09:36:34 C 08 34 52.028 +15 33 29.34 V G96
2022-12-26 09:22:49 C 08 33 09.169 +15 41 30.08 V G96
2022-12-26 09:30:13 C 08 33 08.618 +15 41 32.53 V G96
2022-12-26 09:37:35 C 08 33 08.042 +15 41 35.20 V G96
2022-12-26 09:44:59 C 08 33 07.484 +15 41 37.79 V G96
2023-01-12 09:44:52 C 07 42 15.613 +19 16 11.21 V G96
2023-01-12 09:52:21 C 07 42 14.220 +19 16 16.21 V G96
2023-01-12 09:52:38 C 07 42 14.195 +19 16 17.40 V 703
2023-01-12 09:59:41 C 07 42 12.899 +19 16 20.60 V 703
2023-01-12 09:59:50 C 07 42 12.848 +19 16 21.36 V G96
2023-01-12 10:07:19 C 07 42 11.444 +19 16 25.93 V G96
2023-01-12 10:13:48 C 07 42 10.112 +19 16 30.22 V 703
2023-01-13 08:30:50 C 07 38 06.359 +19 31 42.00 U F52
2023-01-13 09:04:10 C 07 37 59.924 +19 32 05.15 U F52
2023-01-13 09:21:02 C 07 37 56.661 +19 32 16.86 U F52
2023-01-14 07:37:02 C 07 33 42.041 +19 47 27.46 V 703
2023-01-14 07:52:29 C 07 33 38.884 +19 47 37.79 V 703
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)