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
2019-01-26 09:03:55 C 09 02 11.96 +20 12 51.4 V G96
2019-01-27 01:22:00 C 08 58 23.89 +20 47 04.9 q 160
2019-01-27 01:25:26 C 08 58 23.05 +20 47 12.9 q 160
2019-01-27 01:28:53 C 08 58 22.21 +20 47 20.6 q 160
2019-01-31 05:55:38 C 08 26 31.67 +25 11 28.8 o W92
2019-01-31 06:00:58 C 08 26 29.29 +25 11 46.3 o W92
2019-02-01 02:43:36 C 08 17 33.80 +26 16 45.7 q I15
2019-02-01 02:44:26 C 08 17 33.42 +26 16 48.5 q I15
2019-02-01 02:45:16 C 08 17 32.99 +26 16 51.3 q I15
2019-02-03 09:36:53 C 07 47 56.64 +29 31 35.8 V T08
2019-02-03 09:50:35 C 07 47 47.69 +29 32 26.9 V T08
2019-02-03 10:24:06 C 07 47 25.74 +29 34 31.5 V T08
2019-02-04 06:36:29 C 07 33 58.829 +30 51 10.27 U F52
2019-02-04 06:53:01 C 07 33 46.735 +30 52 15.29 U F52
2019-02-04 07:09:38 C 07 33 34.538 +30 53 20.54 U F52
2019-02-04 07:26:13 C 07 33 22.336 +30 54 25.42 U F52
2019-02-05 00:09:49 C 07 20 46.16 +31 58 05.3 q 160
2019-02-05 00:12:49 C 07 20 43.69 +31 58 16.0 q 160
2019-02-05 00:15:48 C 07 20 41.33 +31 58 27.2 q 160
2019-02-05 09:47:06 C 07 13 01.97 +32 35 32.0 V T05
2019-02-05 09:59:14 C 07 12 51.59 +32 36 17.6 V T05
2019-02-05 10:25:29 C 07 12 29.10 +32 37 55.4 V T05
2019-02-05 10:28:47 C 07 12 26.29 +32 38 07.6 V T05
2019-02-05 22:08:56 C 07 02 27.41 +33 21 33.6 q 160
2019-02-05 22:12:05 C 07 02 24.60 +33 21 46.0 q 160
2019-02-05 22:14:31 C 07 02 22.33 +33 21 54.9 q 160
2019-02-06 22:36:08 C 06 39 20.20 +34 48 51.0 q 160
2019-02-06 22:39:04 C 06 39 17.21 +34 49 00.6 q 160
2019-02-06 22:42:01 C 06 39 14.16 +34 49 10.6 q 160
2019-02-13 18:44:16 C 03 18 13.17 +34 59 59.8 q 160
2019-02-13 18:46:25 C 03 18 10.70 +34 59 51.9 q 160
2019-02-13 18:48:34 C 03 18 08.19 +34 59 44.4 q 160
2020-01-03 03:00:12 C 09 23 11.84 +13 34 47.0 19.7 q J43
2020-01-03 03:12:28 C 09 23 11.24 +13 34 51.1 20.3 q J43
2020-01-03 03:24:43 C 09 23 10.72 +13 34 55.3 19.8 q J43
2020-01-03 03:36:55 C 09 23 10.16 +13 35 00.3 20.4 q J43
2020-01-06 06:51:52 C 09 19 36.02 +14 06 05.2 V G96
2020-01-06 06:59:21 C 09 19 35.54 +14 06 09.5 V G96
2020-01-06 07:06:48 C 09 19 35.13 +14 06 13.0 V G96
2020-01-06 07:14:15 C 09 19 34.67 +14 06 16.4 V G96
2020-01-18 07:56:02 C 08 50 55.68 +17 41 20.9 V 703
2020-01-18 08:04:11 C 08 50 54.31 +17 41 28.6 V 703
2020-01-18 08:20:31 C 08 50 51.60 +17 41 47.5 V 703
2020-01-19 11:56:00 C 08 46 19.93 +18 12 48.7 V T05
2020-01-19 12:00:12 C 08 46 19.18 +18 12 50.0 V T05
2020-01-19 12:04:50 C 08 46 18.36 +18 12 55.6 V T05
2020-01-19 12:17:42 C 08 46 16.06 +18 13 10.1 V T05
2020-01-21 09:42:47 C 08 37 53.10 +19 08 45.0 V T08
2020-01-21 09:52:29 C 08 37 51.03 +19 08 57.3 V T08
2020-01-21 09:56:44 C 08 37 50.12 +19 09 03.1 V T08
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)