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
2020-01-21 10:14:12 C 08 37 46.49 +19 09 25.5 V T08
2020-01-23 01:31:02 C 08 29 23.74 +20 02 07.7 V 160
2020-01-23 01:34:26 C 08 29 22.94 +20 02 12.3 V 160
2020-01-23 01:37:51 C 08 29 22.15 +20 02 17.0 V 160
2020-01-23 06:02:07 C 08 28 23.80 +20 08 37.8 V 703
2020-01-23 06:09:38 C 08 28 21.98 +20 08 48.7 V 703
2020-01-23 06:17:08 C 08 28 20.17 +20 08 59.5 V 703
2020-01-23 06:24:40 C 08 28 18.38 +20 09 10.3 V 703
2020-01-23 10:03:42 C 08 27 27.35 +20 14 31.1 V T05
2020-01-23 10:07:49 C 08 27 26.34 +20 14 36.9 V T05
2020-01-23 10:32:03 C 08 27 20.41 +20 15 11.8 V T05
2020-01-23 10:48:00 C 08 27 16.53 +20 15 34.7 V T05
2020-01-24 00:51:06 C 08 23 54.56 +20 35 44.5 V 160
2020-01-24 00:54:42 C 08 23 53.65 +20 35 49.7 V 160
2020-01-24 00:58:19 C 08 23 52.73 +20 35 55.0 V 160
2020-01-24 06:56:37 C 08 22 25.51 +20 44 54.3 V G96
2020-01-24 07:04:08 C 08 22 23.57 +20 45 05.5 V G96
2020-01-24 07:11:39 C 08 22 21.61 +20 45 16.7 V G96
2020-01-24 07:19:10 C 08 22 19.66 +20 45 28.0 V G96
2020-01-25 07:21:24 C 08 16 06.13 +21 22 09.1 U I41
2020-01-25 07:24:23 C 08 16 05.26 +21 22 13.7 U I41
2020-01-25 07:25:12 C 08 16 05.25 +21 22 13.9 U I41
2020-01-25 07:28:12 C 08 16 04.29 +21 22 19.1 U I41
2020-01-25 07:57:29 C 08 15 56.02 +21 23 05.5 U I41
2020-01-25 08:00:29 C 08 15 55.16 +21 23 10.2 U I41
2020-01-25 10:48:41 C 08 15 09.30 +21 27 43.0 V T08
2020-01-25 10:53:31 C 08 15 07.93 +21 27 50.8 V T08
2020-01-25 11:07:55 C 08 15 03.84 +21 28 13.3 V T08
2020-01-25 11:18:19 C 08 15 00.87 +21 28 29.6 V T08
2020-01-25 23:43:47 C 08 11 34.03 +21 47 54.2 V A16
2020-01-26 00:14:12 C 08 11 25.12 +21 48 42.9 V A16
2020-01-26 00:28:02 C 08 11 21.08 +21 49 04.8 V A16
2020-01-26 00:44:38 C 08 11 16.20 +21 49 31.4 V A16
2020-01-26 01:17:51 C 08 11 06.46 +21 50 24.2 V A16
2020-01-26 05:49:06 C 08 09 50.79 +21 57 52.3 U I41
2020-01-26 05:52:06 C 08 09 49.90 +21 57 56.8 U I41
2020-01-26 06:03:02 C 08 09 46.81 +21 58 13.1 U I41
2020-01-26 06:06:02 C 08 09 45.87 +21 58 17.4 U I41
2020-01-26 06:06:11 C 08 09 45.77 +21 58 20.6 U I41
2020-01-26 06:09:10 C 08 09 44.83 +21 58 25.1 U I41
2020-01-26 06:57:11 C 08 09 30.62 +21 59 40.9 U I41
2020-01-26 07:00:11 C 08 09 29.63 +21 59 46.1 U I41
2020-01-26 07:00:17 C 08 09 29.22 +21 59 47.4 V 703
2020-01-26 07:07:47 C 08 09 26.95 +21 59 59.9 V 703
2020-01-26 07:15:18 C 08 09 24.67 +22 00 12.2 V 703
2020-01-26 07:22:48 C 08 09 22.40 +22 00 23.9 V 703
2020-01-26 07:24:41 C 08 09 22.33 +22 00 27.5 U I41
2020-01-26 07:27:40 C 08 09 21.22 +22 00 33.0 U I41
2020-01-26 07:27:49 C 08 09 21.36 +22 00 31.0 U I41
2020-01-26 07:30:50 C 08 09 20.37 +22 00 35.7 U I41
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)