6178 (1986 DA)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5847926253 ± 7.18e-09
Semi-major axis (a)2.8137367896 AU ± 2.72e-09
Inclination (i)4.31447227° ± 1.53e-06
Long. of Asc. Node (Ω)64.47833583° ± 2.13e-05
Arg. of Perihelion (ω)127.46608007° ± 2.14e-05
Mean Anomaly (M)138.35738287° ± 1.70e-06
Mean Motion (n)0.2088272035°/day ± 3.03e-10
Perihelion dist (q)1.16828427 AU ± 2.02e-08
Aphelion dist (Q)4.45918931 AU ± 2.07e-08
Orbital Period4.71981747 yr ± 6.86e-09
Physical Parameters
H (abs. magnitude)15.71
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.248″
Uncertainty0
Orbit TypeAmor
MOID0.179159 AU
Observations Used1282
Radar Obs Used2
Oppositions7
Arc Total1977-2025
First Observation Used1977-07-17
Last Observation Used2025-09-25
Observations (1381)
Date Type RA Dec Mag Band Observatory
2008-11-08 07:01:55 C 03 27 50.18 +17 25 23.4 o 691
2008-11-09 06:17:34 C 03 26 51.81 +17 22 29.2 o 691
2008-11-09 06:42:55 C 03 26 50.69 +17 22 25.9 o 691
2008-11-09 07:08:16 C 03 26 49.62 +17 22 22.8 o 691
2008-11-21 04:47:10 C 03 14 28.86 +16 44 36.0 r G96
2008-11-21 04:56:10 C 03 14 28.46 +16 44 35.1 r G96
2008-11-21 05:04:20 C 03 14 28.10 +16 44 33.7 r G96
2008-11-21 05:12:25 C 03 14 27.74 +16 44 32.9 r G96
2008-11-26 18:57:38 C 03 08 42.10 +16 26 26.7 r A13
2008-11-26 19:29:57 C 03 08 40.78 +16 26 22.8 r A13
2008-12-21 02:56:37 C 02 48 06.48 +15 22 50.1 r G96
2008-12-21 03:02:51 C 02 48 06.33 +15 22 49.1 r G96
2008-12-21 03:09:10 C 02 48 06.15 +15 22 48.9 r G96
2008-12-21 03:15:25 C 02 48 06.01 +15 22 48.6 r G96
2010-05-16 23:08:35 S 21 58 38.20 -16 31 30.5 L C51
2010-05-17 02:19:06 S 21 58 44.33 -16 31 17.1 L C51
2010-05-17 05:29:37 S 21 58 50.414 -16 31 04.15 L C51
2010-05-17 08:40:08 S 21 58 56.513 -16 30 50.87 L C51
2010-05-17 11:50:39 S 21 59 02.54 -16 30 38.2 L C51
2010-05-17 13:25:49 S 21 59 05.55 -16 30 31.7 L C51
2010-05-17 15:01:10 S 21 59 08.53 -16 30 25.2 L C51
2010-05-17 16:36:20 S 21 59 11.57 -16 30 18.6 L C51
2010-05-17 18:11:41 S 21 59 14.51 -16 30 12.2 L C51
2010-05-17 19:46:51 S 21 59 17.50 -16 30 06.4 L C51
2010-05-17 22:57:22 S 21 59 23.45 -16 29 53.5 L C51
2010-05-18 02:07:53 S 21 59 29.38 -16 29 41.6 L C51
2010-05-18 05:18:24 S 21 59 35.29 -16 29 29.3 L C51
2010-07-19 14:49:05 C 21 50 54.45 -19 38 53.9 r E12
2010-07-19 15:05:32 C 21 50 53.80 -19 38 58.8 r E12
2010-07-19 15:22:13 C 21 50 53.08 -19 39 03.7 r E12
2010-07-19 15:39:02 C 21 50 52.33 -19 39 07.9 r E12
2010-08-02 11:07:39 C 21 35 59.725 -21 05 14.40 L F51
2010-08-02 11:26:17 C 21 35 58.818 -21 05 18.94 L F51
2010-08-30 09:18:53 C 21 06 45.724 -23 01 54.08 L F51
2010-08-30 09:35:08 C 21 06 45.138 -23 01 55.51 L F51
2010-09-06 07:55:55 C 21 01 33.386 -23 13 42.97 L F51
2010-09-06 08:12:54 C 21 01 32.887 -23 13 43.83 L F51
2013-10-03 11:00:55 C 05 10 15.37 +22 34 51.2 q G96
2013-10-03 11:11:03 C 05 10 15.44 +22 34 51.5 q G96
2013-10-03 11:21:10 C 05 10 15.56 +22 34 51.9 q G96
2013-10-03 11:31:22 C 05 10 15.64 +22 34 52.3 q G96
2013-11-27 23:16:45 C 04 41 51.71 +22 49 35.3 q G40
2013-11-27 23:26:20 C 04 41 51.23 +22 49 34.7 q G40
2013-11-27 23:56:22 C 04 41 49.66 +22 49 34.6 q G40
2013-11-28 00:21:57 C 04 41 48.37 +22 49 33.0 q G40
2013-11-29 23:03:53 C 04 39 24.16 +22 47 42.8 q Z81
2013-11-30 00:27:05 C 04 39 19.73 +22 47 39.4 q Z81
2013-11-30 02:53:20 C 04 39 11.93 +22 47 33.8 q Z81
2013-12-02 13:24:35 C 04 36 07.27 +22 44 56.6 q D29
2013-12-02 13:47:30 C 04 36 06.08 +22 44 55.9 q D29
Radar Observations (4)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
1986-04-19 02:00:00 -20592.8 1 Hz 2380 -1 -1
1986-04-19.083333 -2059280 100 Hz 2380 251 251
1986-04-21 02:56:00 209263398 8 us 2380 -1 -1
1986-04-21.122222 20926339800 8000 us 2380 251 251
Station codes
-1 Arecibo (305-m, 1963–2020)