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
2020-01-27 10:13:54 C 08 01 14.08 +22 45 00.9 V T05
2020-01-27 10:18:54 C 08 01 12.43 +22 45 09.5 V T05
2020-01-27 10:30:33 C 08 01 08.59 +22 45 28.6 V T05
2020-01-27 10:51:04 C 08 01 01.83 +22 46 03.1 V T05
2020-01-28 06:07:24 C 07 54 46.08 +23 18 48.6 U I41
2020-01-28 06:10:23 C 07 54 45.01 +23 18 52.9 U I41
2020-01-28 06:58:19 C 07 54 28.47 +23 20 15.9 U I41
2020-01-28 07:01:20 C 07 54 27.35 +23 20 20.8 U I41
2020-01-28 07:30:33 C 07 54 17.08 +23 21 14.1 U I41
2020-01-28 07:33:32 C 07 54 15.94 +23 21 18.8 U I41
2020-01-28 07:34:47 C 07 54 15.60 +23 21 20.8 U I41
2020-01-28 07:37:48 C 07 54 14.50 +23 21 25.6 U I41
2020-01-29 06:34:37 C 07 46 13.26 +24 01 33.8 V 703
2020-01-29 06:42:10 C 07 46 10.44 +24 01 47.2 V 703
2020-01-29 06:49:44 C 07 46 07.63 +24 02 01.0 V 703
2020-01-29 06:57:17 C 07 46 04.78 +24 02 13.7 V 703
2020-01-30 06:57:09 C 07 37 05.947 +24 45 02.00 U F51
2020-01-30 07:34:18 C 07 36 50.998 +24 46 10.24 U F51
2020-01-30 07:52:49 C 07 36 43.548 +24 46 43.99 U F51
2020-02-01 04:38:12 C 07 18 04.33 +26 06 48.3 V 703
2020-02-01 04:54:13 C 07 17 57.03 +26 07 17.3 V 703
2020-02-01 05:02:12 C 07 17 53.35 +26 07 31.6 V 703
2020-02-02 09:38:30 C 07 04 39.45 +26 58 03.9 V T08
2020-02-02 09:43:37 C 07 04 36.91 +26 58 12.3 V T08
2020-02-02 09:58:19 C 07 04 29.64 +26 58 37.5 V T08
2020-02-02 10:06:47 C 07 04 25.44 +26 58 52.2 V T08
2020-02-03 03:40:45 C 06 55 51.31 +27 28 37.2 V G96
2020-02-03 03:46:51 C 06 55 48.16 +27 28 47.6 V G96
2020-02-03 03:52:58 C 06 55 44.98 +27 28 58.1 V G96
2020-02-03 03:59:05 C 06 55 41.85 +27 29 08.9 V G96
2020-02-04 08:17:10 C 06 40 58.96 +28 15 14.6 V T05
2020-02-04 08:22:06 C 06 40 56.25 +28 15 21.4 V T05
2020-02-04 08:32:07 C 06 40 50.68 +28 15 37.7 V T05
2020-02-04 08:46:42 C 06 40 42.68 +28 16 00.6 V T05
2020-02-04 19:47:17 C 06 34 45.35 +28 32 25.2 V 160
2020-02-04 19:50:43 C 06 34 43.41 +28 32 30.3 V 160
2020-02-04 19:54:09 C 06 34 41.47 +28 32 35.6 V 160
2020-02-07 22:04:47 C 05 50 57.28 +30 03 13.3 V 160
2020-02-07 22:08:15 C 05 50 55.08 +30 03 16.0 V 160
2020-02-07 22:11:45 C 05 50 52.84 +30 03 19.0 V 160
2020-02-08 04:57:36 C 05 46 40.06 +30 09 22.1 V 654
2020-02-08 05:44:26 C 05 46 09.84 +30 09 59.4 V 654
2020-02-08 06:28:22 C 05 45 41.51 +30 10 33.1 V 654
2020-02-08 06:56:37 C 05 45 23.31 +30 10 54.2 V 654
2020-02-11 23:48:41 S 04 47 42.250 +30 37 08.04 L C51
2020-02-12 02:57:00 S 04 45 38.683 +30 36 18.36 L C51
2020-02-12 04:31:15 S 04 44 36.850 +30 35 50.35 L C51
2020-02-12 19:04:58 C 04 35 05.28 +30 29 53.1 V 130
2020-02-12 19:09:21 C 04 35 02.37 +30 29 51.0 V 130
2020-02-12 19:13:45 C 04 34 59.43 +30 29 49.1 V 130
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)