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
2018-01-21 14:06:16 C 10 14 27.19 +13 33 27.4 U T05
2018-01-21 14:17:32 C 10 14 26.93 +13 33 38.9 U T05
2018-01-21 14:33:09 C 10 14 26.52 +13 33 54.6 U T05
2018-01-23 00:59:53 C 10 13 51.98 +14 12 47.7 U 130
2018-01-23 01:02:09 C 10 13 51.89 +14 12 50.6 U 130
2018-01-23 01:04:25 C 10 13 51.84 +14 12 53.6 U 130
2018-01-23 01:06:41 C 10 13 51.77 +14 12 56.2 U 130
2018-01-23 08:32:53 C 10 13 42.47 +14 22 28.6 U 703
2018-01-23 08:40:24 C 10 13 42.24 +14 22 39.2 U 703
2018-01-23 08:47:55 C 10 13 42.01 +14 22 48.6 U 703
2018-01-23 08:55:28 C 10 13 41.73 +14 22 58.9 U 703
2018-01-24 08:04:28 C 10 13 07.04 +14 54 41.1 U G96
2018-01-24 08:13:22 C 10 13 06.71 +14 54 53.7 U G96
2018-01-24 08:20:44 C 10 13 06.37 +14 55 05.2 U G96
2018-01-24 08:28:06 C 10 13 06.07 +14 55 15.7 U G96
2018-01-26 05:25:16 C 10 11 32.51 +16 10 30.6 U W88
2018-01-26 07:10:35 C 10 11 26.59 +16 13 49.1 U W88
2018-01-26 13:54:43 C 10 11 07.839 +16 25 58.70 U F51
2018-01-26 14:13:45 C 10 11 06.704 +16 26 35.50 U F51
2018-01-26 14:32:53 C 10 11 05.569 +16 27 12.53 U F51
2018-01-26 14:52:05 C 10 11 04.445 +16 27 49.65 U F51
2018-01-27 07:05:26 C 10 10 18.99 +17 02 21.1 U W88
2018-01-27 07:35:29 C 10 10 16.97 +17 03 26.1 U W88
2018-01-29 14:02:41 C 10 06 39.53 +19 24 29.8 U T05
2018-01-29 14:22:23 C 10 06 37.54 +19 25 29.8 U T05
2018-01-29 14:42:16 C 10 06 35.57 +19 26 30.6 U T05
2018-02-02 19:47:45 C 09 52 28.16 +27 25 14.8 q 006
2018-02-02 19:49:46 C 09 52 27.64 +27 25 29.7 q 006
2018-02-02 19:51:48 C 09 52 27.15 +27 25 44.0 q 006
2018-02-02 19:53:49 C 09 52 26.69 +27 25 58.9 q 006
2018-02-02 19:55:52 C 09 52 26.28 +27 26 12.8 q 006
2018-02-02 19:57:41 C 09 52 25.77 +27 26 27.5 q 006
2018-02-02 19:59:41 C 09 52 25.25 +27 26 41.5 q 006
2018-02-02 20:01:41 C 09 52 24.77 +27 26 56.3 q 006
2018-02-04 11:54:50 C 09 39 55.98 +33 19 09.5 U T08
2018-02-04 12:09:35 C 09 39 49.30 +33 21 47.6 U T08
2018-02-04 12:36:46 C 09 39 36.94 +33 26 39.7 U T08
2018-02-04 12:40:27 C 09 39 35.26 +33 27 19.2 U T08
2018-02-04 23:25:27 C 09 34 48.67 +35 30 20.8 S C47
2018-02-04 23:32:12 C 09 34 45.10 +35 31 43.8 S C47
2018-02-04 23:34:29 C 09 34 43.91 +35 32 12.1 S C47
2018-02-04 23:39:04 C 09 34 41.46 +35 33 08.3 S C47
2018-02-04 23:41:22 C 09 34 40.25 +35 33 36.3 S C47
2018-02-05 17:49:13 C 09 24 10.93 +39 41 55.6 q C97
2018-02-05 17:50:49 C 09 24 09.86 +39 42 18.9 q C97
2018-02-05 19:14:50 C 09 23 06.53 +40 03 58.2 q C97
2018-02-05 19:16:03 C 09 23 05.58 +40 04 16.8 q C97
2018-02-05 19:18:22 C 09 23 03.79 +40 04 53.3 q C97
2018-02-05 22:01:56 C 09 21 04.15 +40 46 06.0 q C23
2018-02-05 22:04:34 C 09 21 02.07 +40 46 48.2 q C23
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)