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
2021-01-08 13:50:39 C 08 47 14.509 +16 15 49.85 U F52
2021-01-08 14:08:19 C 08 47 12.456 +16 16 01.29 U F52
2021-01-08 14:26:00 C 08 47 10.414 +16 16 12.81 U F52
2021-01-09 09:21:04 C 08 45 02.33 +16 28 56.3 V G96
2021-01-09 09:28:42 C 08 45 01.38 +16 29 01.2 V G96
2021-01-09 09:36:15 C 08 45 00.45 +16 29 06.6 V G96
2021-01-09 09:43:49 C 08 44 59.51 +16 29 11.6 V G96
2021-01-15 11:19:15 C 08 24 05.76 +18 27 09.9 V T08
2021-01-15 12:05:56 C 08 23 57.27 +18 27 53.4 V T08
2021-01-15 12:09:55 C 08 23 56.52 +18 27 56.1 V T08
2021-01-15 12:47:32 C 08 23 49.72 +18 28 29.4 V T08
2021-01-17 09:43:29 C 08 15 35.95 +19 11 53.1 V T05
2021-01-17 09:46:47 C 08 15 35.28 +19 11 57.2 V T05
2021-01-17 09:51:52 C 08 15 34.25 +19 12 01.6 V T05
2021-01-17 10:00:26 C 08 15 32.52 +19 12 10.8 V T05
2021-01-17 22:41:46 C 08 13 02.30 +19 24 46.3 V 130
2021-01-17 22:51:12 C 08 13 00.40 +19 24 56.3 V 130
2021-01-18 06:27:57 C 08 11 28.28 +19 32 49.9 V G96
2021-01-18 06:35:18 C 08 11 26.73 +19 32 57.6 V G96
2021-01-18 06:42:38 C 08 11 25.17 +19 33 05.1 V G96
2021-01-18 06:50:00 C 08 11 23.62 +19 33 12.8 V G96
2021-01-18 07:04:41 C 08 11 20.51 +19 33 28.4 V 703
2021-01-18 07:12:10 C 08 11 18.90 +19 33 35.9 V 703
2021-01-18 07:27:09 C 08 11 15.68 +19 33 51.2 V 703
2021-01-18 10:12:54 C 08 10 40.75 +19 36 38.5 V U68
2021-01-18 10:13:07 C 08 10 40.70 +19 36 38.9 V U68
2021-01-18 10:17:42 C 08 10 39.72 +19 36 43.7 V U68
2021-01-18 10:18:46 C 08 10 39.51 +19 36 44.4 V U68
2021-01-18 10:23:34 C 08 10 38.50 +19 36 50.1 V U68
2021-01-18 10:23:46 C 08 10 38.44 +19 36 50.0 V U68
2021-01-18 10:28:22 C 08 10 37.47 +19 36 54.7 V U68
2021-01-18 10:29:25 C 08 10 37.26 +19 36 55.6 V U68
2021-01-21 10:13:31 C 07 54 33.45 +20 54 33.8 V T05
2021-01-21 10:36:04 C 07 54 27.78 +20 54 58.7 V T05
2021-01-21 10:54:12 C 07 54 23.17 +20 55 19.2 V T05
2021-01-21 11:00:09 C 07 54 21.61 +20 55 25.5 V T05
2021-01-21 21:07:56 C 07 51 52.92 +21 06 33.9 V L18
2021-01-21 21:14:56 C 07 51 51.16 +21 06 42.0 V L18
2021-01-21 21:21:56 C 07 51 49.34 +21 06 49.7 V L18
2021-02-08 07:03:00 C 05 24 35.34 +27 29 37.6 V T08
2021-02-08 07:03:40 C 05 24 35.05 +27 29 37.8 V T08
2021-02-08 07:26:41 C 05 24 25.11 +27 29 43.4 V T08
2021-02-08 07:28:01 C 05 24 24.55 +27 29 41.6 V T08
2021-02-08 07:31:20 C 05 24 23.12 +27 29 44.9 V T08
2021-02-08 07:33:19 C 05 24 22.26 +27 29 45.0 V T08
2021-02-10 06:46:37 C 05 04 43.47 +27 37 30.8 V T05
2021-02-10 06:51:14 C 05 04 41.57 +27 37 30.1 V T05
2021-02-10 07:05:21 C 05 04 35.48 +27 37 31.5 V T05
2021-02-10 07:28:10 C 05 04 25.68 +27 37 31.8 V T05
2021-02-11 06:35:38 S 04 54 54.600 +27 37 30.25 L C51
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)