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
2018-02-08 16:17:09 C 07 02 31.10 +64 29 55.0 q C97
2018-02-08 16:20:08 C 07 02 15.21 +64 31 00.5 q C97
2018-02-08 16:22:07 C 07 02 04.99 +64 31 43.1 q C97
2018-02-08 22:53:20 C 06 24 53.77 +66 37 04.6 q I15
2018-02-08 22:56:06 C 06 24 36.11 +66 37 53.2 q I15
2018-02-08 22:58:09 C 06 24 22.76 +66 38 29.7 q I15
2018-02-09 15:49:14 C 04 16 35.51 +68 45 03.8 q C97
2018-02-09 15:52:09 C 04 16 12.11 +68 44 52.4 q C97
2018-02-09 15:55:01 C 04 15 47.44 +68 44 39.9 q C97
2018-02-09 15:55:56 C 04 15 39.75 +68 44 34.3 q C97
2018-02-09 15:56:51 C 04 15 32.55 +68 44 30.2 q C97
2018-02-09 15:59:37 C 04 15 10.06 +68 44 19.0 q C97
2018-02-09 19:26:44 S 03 47 48.92 +68 17 32.7 L C51
2019-01-03 13:56:49 C 09 46 11.727 +12 08 46.75 U F51
2019-01-03 13:58:49 C 09 46 11.696 +12 08 47.27 U F51
2019-01-03 14:13:45 C 09 46 11.469 +12 08 51.13 U F51
2019-01-03 14:15:45 C 09 46 11.437 +12 08 51.57 U F51
2019-01-03 14:30:38 C 09 46 11.208 +12 08 55.34 U F51
2019-01-03 14:32:37 C 09 46 11.174 +12 08 55.78 U F51
2019-01-10 10:46:32 C 09 42 30.792 +13 10 13.43 U F51
2019-01-10 11:03:34 C 09 42 30.046 +13 10 22.30 U F51
2019-01-10 11:20:40 C 09 42 29.295 +13 10 31.19 U F51
2019-01-10 11:37:39 C 09 42 28.542 +13 10 39.90 U F51
2019-01-12 07:59:51 C 09 40 35.71 +13 35 16.0 V 703
2019-01-12 08:14:57 C 09 40 35.00 +13 35 24.1 V 703
2019-01-12 08:22:29 C 09 40 34.55 +13 35 30.0 V 703
2019-01-12 12:29:15 C 09 40 22.27 +13 38 05.6 V T05
2019-01-12 12:39:28 C 09 40 21.72 +13 38 12.4 V T05
2019-01-12 13:01:15 C 09 40 20.51 +13 38 25.6 V T05
2019-01-12 13:02:41 C 09 40 20.30 +13 38 25.6 V T05
2019-01-17 18:18:36 C 09 31 59.48 +15 15 49.6 q D29
2019-01-17 18:38:57 C 09 31 57.53 +15 16 09.1 q D29
2019-01-17 18:59:19 C 09 31 55.47 +15 16 29.8 q D29
2019-01-24 11:25:42 C 09 11 23.08 +18 47 00.3 V T05
2019-01-24 11:33:37 C 09 11 21.55 +18 47 13.8 V T05
2019-01-24 11:35:46 C 09 11 21.12 +18 47 17.6 V T05
2019-01-24 11:48:07 C 09 11 18.75 +18 47 38.7 V T05
2019-01-25 09:21:00 C 09 07 12.75 +19 26 21.0 V 703
2019-01-25 09:28:36 C 09 07 11.08 +19 26 35.1 V 703
2019-01-25 09:36:12 C 09 07 09.51 +19 26 49.6 V 703
2019-01-25 09:43:49 C 09 07 07.97 +19 27 03.4 V 703
2019-01-26 01:45:22 C 09 03 48.16 +19 57 52.5 q 160
2019-01-26 01:49:10 C 09 03 47.17 +19 58 02.8 q 160
2019-01-26 01:53:00 C 09 03 46.33 +19 58 09.9 q 160
2019-01-26 03:12:13 C 09 03 31.77 +20 00 49.7 q I15
2019-01-26 03:16:55 C 09 03 30.69 +20 00 59.3 q I15
2019-01-26 03:21:38 C 09 03 29.63 +20 01 08.8 q I15
2019-01-26 08:41:39 C 09 02 17.22 +20 12 06.0 V G96
2019-01-26 08:49:05 C 09 02 15.48 +20 12 21.1 V G96
2019-01-26 08:56:30 C 09 02 13.71 +20 12 36.2 V G96
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)