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
1977-07-17 16:08:38 A 22 02 22.60 -18 31 27.2 413
1977-07-17 17:18:38 A 22 02 19.91 -18 31 47.0 413
1986-02-05 10:43:44 A 09 58 27.09 +27 38 51.4 675
1986-02-07 08:44:14 A 09 59 12.34 +28 03 24.4 675
1986-02-16 12:49:20 A 10 02 42.91 +29 59 46.8 14.5 883
1986-02-16 13:46:47 A 10 02 43.45 +30 00 18.8 883
1986-02-17 11:57:00 A 10 03 07.11 +30 11 29.4 14.5 883
1986-02-17 12:12:19 A 10 03 07.41 +30 11 38.1 883
1986-02-17 15:48:45 A 10 03 09.67 +30 13 27.0 883
1986-02-17 16:28:20 A 10 03 10.16 +30 13 46.2 883
1986-02-19 15:49:47 A 10 04 02.86 +30 36 54.2 14.5 883
1986-02-19 16:28:07 A 10 04 03.20 +30 37 09.8 883
1986-02-20 17:34:08 A 10 04 32.52 +30 48 56.1 14.5 883
1986-02-20 17:53:28 A 10 04 32.70 +30 49 04.5 883
1986-02-27 14:32:28 A 10 08 34.46 +31 56 22.0 14.5 883
1986-02-27 15:52:37 A 10 08 36.24 +31 56 49.3 883
1986-02-28 12:17:59 A 10 09 14.81 +32 03 36.5 14.0 376
1986-02-28 12:45:00 A 10 09 15.45 +32 03 46.1 376
1986-02-28 14:11:29 A 10 09 17.27 +32 04 14.2 14.5 883
1986-02-28 15:04:26 A 10 09 18.49 +32 04 31.4 883
1986-02-28 19:36:29 A 10 09 25.50 +32 05 49.7 372
1986-02-28 19:46:30 A 10 09 25.85 +32 05 52.5 372
1986-02-28 19:56:29 A 10 09 26.01 +32 05 53.0 372
1986-03-02 12:37:31 A 10 10 49.09 +32 18 03.4 14.5 883
1986-03-02 13:25:45 A 10 10 50.39 +32 18 16.5 883
1986-03-02 13:49:29 A 10 10 51.00 +32 18 23.7 887
1986-03-02 13:59:59 A 10 10 51.20 +32 18 26.6 887
1986-03-02 14:28:00 A 10 10 51.87 +32 18 34.2 887
1986-03-02 14:37:00 A 10 10 52.22 +32 18 37.6 887
1986-03-03 10:54:29 A 10 11 37.12 +32 23 49.0 398
1986-03-03 11:52:29 A 10 11 38.84 +32 24 05.0 398
1986-03-03 12:52:30 A 10 11 40.67 +32 24 23.1 398
1986-03-05 14:59:17 A 10 13 36.07 +32 35 18.5 14.5 883
1986-03-05 16:19:37 A 10 13 38.73 +32 35 28.7 883
1986-03-06 04:39:54 A 10 14 12.01 +32 37 42.4 688
1986-03-06 05:20:43 A 10 14 13.31 +32 37 50.2 688
1986-03-07 12:15:00 A 10 15 35.38 +32 42 23.5 398
1986-03-07 13:56:59 A 10 15 39.01 +32 42 35.9 398
1986-03-07 15:38:36 A 10 15 42.85 +32 42 47.7 883
1986-03-07 16:27:26 A 10 15 44.68 +32 42 52.4 883
1986-03-12 12:26:00 A 10 21 53.31 +32 46 58.1 398
1986-03-12 13:43:59 A 10 21 57.15 +32 46 53.0 398
1986-03-12 13:52:00 A 10 21 57.62 +32 46 52.0 14.0 887
1986-03-12 14:00:29 A 10 21 58.02 +32 46 51.8 887
1986-03-12 14:10:31 A 10 21 58.56 +32 46 50.7 887
1986-03-12 14:22:30 A 10 21 59.16 +32 46 49.9 887
1986-03-12 15:10:49 A 10 22 01.5 +32 46 49 883
1986-03-12 15:36:19 A 10 22 02.7 +32 46 46 883
1986-03-15 16:41:11 A 10 26 46.26 +32 37 28.5 883
1986-03-15 17:13:21 A 10 26 48.26 +32 37 21.5 883
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)