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
2018-02-05 22:07:31 C 09 20 59.72 +40 47 35.4 q C23
2018-02-05 22:10:28 C 09 20 57.39 +40 48 22.9 q C23
2018-02-06 16:30:43 C 09 03 59.03 +46 13 09.5 q C97
2018-02-06 16:37:46 C 09 03 50.63 +46 15 29.4 q C97
2018-02-06 16:39:46 C 09 03 48.34 +46 16 08.3 q C97
2018-02-06 16:40:45 C 09 03 46.98 +46 16 30.5 q C97
2018-02-06 16:41:45 C 09 03 45.81 +46 16 50.0 q C97
2018-02-06 19:03:41 C 09 00 55.38 +47 01 51.3 U Z80
2018-02-06 19:05:30 C 09 00 53.18 +47 02 28.2 U Z80
2018-02-06 19:07:19 C 09 00 50.86 +47 03 05.8 U Z80
2018-02-06 19:09:09 C 09 00 48.64 +47 03 43.2 U Z80
2018-02-06 19:10:59 C 09 00 46.33 +47 04 20.5 U Z80
2018-02-06 19:12:48 C 09 00 44.10 +47 04 57.7 U Z80
2018-02-06 19:14:38 C 09 00 41.81 +47 05 35.2 U Z80
2018-02-06 19:16:27 C 09 00 39.53 +47 06 12.6 U Z80
2018-02-06 19:17:44 C 09 00 37.93 +47 06 37.9 U Z80
2018-02-06 19:20:19 C 09 00 34.74 +47 07 31.0 U Z80
2018-02-06 19:22:09 C 09 00 32.44 +47 08 08.6 U Z80
2018-02-06 19:23:47 C 09 00 30.40 +47 08 42.2 U Z80
2018-02-07 05:22:53 C 08 46 19.91 +50 41 45.6 U 703
2018-02-07 05:30:37 C 08 46 06.80 +50 44 39.0 U 703
2018-02-07 05:38:21 C 08 45 53.68 +50 47 31.6 U 703
2018-02-07 05:46:04 C 08 45 40.51 +50 50 27.2 U 703
2018-02-07 05:56:49 C 08 45 22.00 +50 54 26.4 U G96
2018-02-07 06:04:22 C 08 45 08.96 +50 57 16.4 U G96
2018-02-07 06:11:56 C 08 44 55.86 +51 00 05.8 U G96
2018-02-07 11:24:57 C 08 35 23.62 +52 59 35.5 U T05
2018-02-07 11:28:54 C 08 35 15.67 +53 01 05.8 U T05
2018-02-07 11:50:32 C 08 34 31.68 +53 09 22.4 U T05
2018-02-07 11:59:43 C 08 34 12.86 +53 12 51.6 U T05
2018-02-07 19:52:53 C 08 17 03.00 +56 19 41.5 q C23
2018-02-07 19:56:10 C 08 16 54.53 +56 21 03.0 q C23
2018-02-07 19:59:46 C 08 16 45.20 +56 22 32.6 q C23
2018-02-07 20:03:23 C 08 16 35.85 +56 24 01.9 q C23
2018-02-07 21:30:29 C 08 12 44.54 +57 00 23.6 q C95
2018-02-07 21:30:45 C 08 12 43.78 +57 00 31.5 q C95
2018-02-07 21:31:02 C 08 12 43.00 +57 00 37.3 q C95
2018-02-07 21:31:19 C 08 12 42.23 +57 00 44.0 q C95
2018-02-07 21:31:35 C 08 12 41.45 +57 00 51.4 q C95
2018-02-07 21:31:52 C 08 12 40.71 +57 00 58.3 q C95
2018-02-07 21:32:08 C 08 12 39.98 +57 01 04.9 q C95
2018-02-08 16:04:13 C 07 03 38.30 +64 25 12.4 q C97
2018-02-08 16:05:12 C 07 03 34.00 +64 25 31.1 q C97
2018-02-08 16:06:11 C 07 03 28.51 +64 25 54.2 q C97
2018-02-08 16:07:11 C 07 03 23.46 +64 26 16.1 q C97
2018-02-08 16:08:11 C 07 03 17.64 +64 26 39.8 q C97
2018-02-08 16:09:10 C 07 03 13.19 +64 26 58.7 q C97
2018-02-08 16:11:09 C 07 03 01.88 +64 27 46.1 q C97
2018-02-08 16:13:09 C 07 02 51.91 +64 28 27.9 q C97
2018-02-08 16:16:09 C 07 02 36.20 +64 29 33.6 q C97
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)