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
2019-06-16 07:33:23 C 11 48 29.27 +03 25 28.5 V T05
2019-06-16 07:41:34 C 11 48 30.54 +03 25 18.3 V T05
2019-06-16 07:55:39 C 11 48 32.78 +03 24 58.6 V T05
2019-06-18 06:29:13 C 11 55 56.46 +02 23 16.9 V T08
2019-06-18 06:33:53 C 11 55 57.22 +02 23 10.5 V T08
2019-06-18 06:41:50 C 11 55 58.42 +02 23 00.3 V T08
2019-06-18 06:56:31 C 11 56 00.71 +02 22 40.9 V T08
2019-06-20 06:12:29 C 12 03 27.44 +01 20 33.5 V T05
2019-06-20 06:17:45 C 12 03 28.26 +01 20 26.4 V T05
2019-06-20 06:25:45 C 12 03 29.48 +01 20 15.9 V T05
2019-06-20 06:29:42 C 12 03 30.12 +01 20 10.9 V T05
2019-06-20 06:33:46 C 12 03 30.73 +01 20 05.4 V T05
2019-06-20 06:39:49 C 12 03 31.67 +01 19 57.4 V T05
2019-06-20 06:56:29 C 12 03 34.25 +01 19 36.1 V T05
2019-06-22 07:26:01 C 12 11 08.47 +00 16 34.2 V T08
2019-06-22 07:31:22 C 12 11 09.23 +00 16 27.2 V T08
2019-06-22 07:38:52 C 12 11 10.41 +00 16 17.8 V T08
2019-06-22 07:54:54 C 12 11 12.86 +00 15 57.3 V T08
2019-06-23 04:55:54 C 12 14 28.51 -00 11 08.9 V 703
2019-06-23 05:04:29 C 12 14 29.88 -00 11 20.3 V 703
2019-06-23 05:21:37 C 12 14 32.45 -00 11 42.6 V 703
2019-06-26 06:16:15 C 12 25 45.38 -01 44 13.2 V T08
2019-06-26 06:21:06 C 12 25 46.19 -01 44 18.3 V T08
2019-06-26 06:27:48 C 12 25 47.14 -01 44 27.1 V T08
2019-06-26 06:30:29 C 12 25 47.46 -01 44 29.8 V T08
2019-06-26 06:44:34 C 12 25 49.61 -01 44 48.1 V T08
2019-06-30 07:26:48 C 12 40 27.10 -03 43 50.7 V T08
2019-06-30 08:22:52 C 12 40 35.38 -03 44 58.7 V T08
2019-06-30 08:27:33 C 12 40 36.17 -03 45 04.2 V T08
2019-06-30 08:35:35 C 12 40 37.30 -03 45 14.1 V T08
2019-07-02 06:35:03 C 12 47 28.93 -04 40 10.2 V T05
2019-07-02 06:39:01 C 12 47 29.50 -04 40 15.3 V T05
2019-07-02 06:46:31 C 12 47 30.60 -04 40 24.1 V T05
2019-07-03 03:56:00 C 12 50 38.57 -05 05 19.6 V G96
2019-07-03 04:04:16 C 12 50 39.77 -05 05 29.3 V G96
2019-07-03 04:12:31 C 12 50 40.97 -05 05 39.0 V G96
2019-07-03 04:20:47 C 12 50 42.17 -05 05 48.6 V G96
2019-07-04 03:51:44 C 12 54 10.06 -05 33 10.8 V 703
2019-07-04 03:59:37 C 12 54 11.31 -05 33 20.4 V 703
2019-07-04 04:07:32 C 12 54 12.48 -05 33 28.6 V 703
2019-07-04 04:15:26 C 12 54 13.62 -05 33 38.0 V 703
2019-07-04 06:49:21 C 12 54 36.19 -05 36 34.1 V T08
2019-07-04 06:53:21 C 12 54 36.82 -05 36 39.3 V T08
2019-07-04 07:00:46 C 12 54 37.88 -05 36 47.3 V T08
2019-07-04 07:17:30 C 12 54 40.31 -05 37 07.1 V T08
2019-07-06 06:39:12 C 13 01 35.83 -06 31 10.5 V T08
2019-07-06 06:43:51 C 13 01 36.46 -06 31 16.4 V T08
2019-07-06 06:51:35 C 13 01 37.62 -06 31 24.7 V T08
2019-07-06 07:10:16 C 13 01 40.28 -06 31 45.7 V T08
2019-07-12 06:37:02 C 13 22 13.20 -09 07 15.4 V T08
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)