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
2024-07-31 22:15:57 C 19 42 03.336 -27 47 16.66 V M22
2024-08-01 21:38:15 C 19 41 04.145 -27 48 45.90 V M22
2024-08-01 21:42:58 C 19 41 03.955 -27 48 46.26 V M22
2024-08-01 21:51:04 C 19 41 03.634 -27 48 46.66 V M22
2024-08-01 22:06:49 C 19 41 02.902 -27 48 47.88 V M22
2024-08-05 21:54:21 C 19 37 18.646 -27 53 21.41 V M22
2024-08-05 22:02:07 C 19 37 18.300 -27 53 21.37 V M22
2024-08-05 22:06:44 C 19 37 18.156 -27 53 21.84 V M22
2024-08-05 22:15:17 C 19 37 17.849 -27 53 21.77 V M22
2024-08-05 22:19:53 C 19 37 17.623 -27 53 21.98 V M22
2024-08-05 22:23:53 C 19 37 17.455 -27 53 22.20 V M22
2024-08-05 22:27:47 C 19 37 17.400 -27 53 22.06 V M22
2024-08-05 22:45:30 C 19 37 16.666 -27 53 22.78 V M22
2024-08-11 02:59:08 C 19 33 14.220 -27 55 51.60 V W68
2024-08-11 03:03:37 C 19 33 14.057 -27 55 51.06 V W68
2024-08-11 03:49:38 C 19 33 12.634 -27 55 51.31 V W68
2024-08-11 03:57:35 C 19 33 12.406 -27 55 51.38 V W68
2024-10-20 05:19:28 C 19 54 59.958 -25 15 57.61 X F51
2024-10-20 05:26:01 C 19 55 00.222 -25 15 56.48 X F51
2024-10-20 05:32:34 C 19 55 00.481 -25 15 55.49 X F51
2024-10-20 05:39:07 C 19 55 00.753 -25 15 54.37 X F51
2025-07-28 13:04:56 C 00 12 52.875 -04 02 32.30 X F51
2025-07-28 13:19:03 C 00 12 52.697 -04 02 33.89 X F51
2025-07-28 13:47:17 C 00 12 52.387 -04 02 37.17 X F51
2025-08-30 10:57:33 C 23 56 20.446 -06 15 41.84 X F51
2025-08-30 11:15:18 C 23 56 19.924 -06 15 45.24 X F51
2025-08-30 11:33:04 C 23 56 19.397 -06 15 48.90 X F51
2025-08-30 11:50:51 C 23 56 18.826 -06 15 52.31 X F51
2025-09-25 08:57:10 C 23 36 37.452 -08 20 07.67 X F51
2025-09-25 09:11:25 C 23 36 36.985 -08 20 10.13 X F51
2025-09-25 09:25:40 C 23 36 36.532 -08 20 12.70 X F51
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)