1864 Daedalus (1971 FA)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar ⇩ Gaia
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6144457497 ± 9.02e-09
Semi-major axis (a)1.4608394399 AU ± 7.41e-10
Inclination (i)22.21687740° ± 1.11e-06
Long. of Asc. Node (Ω)6.59701837° ± 1.87e-06
Arg. of Perihelion (ω)325.66177542° ± 1.90e-06
Mean Anomaly (M)257.57085481° ± 1.82e-06
Mean Motion (n)0.5582240560°/day ± 4.25e-10
Perihelion dist (q)0.56323286 AU ± 1.32e-08
Aphelion dist (Q)2.35844602 AU ± 1.32e-08
Orbital Period1.76564638 yr ± 1.34e-09
Physical Parameters
H (abs. magnitude)14.83
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.311″
Uncertainty0
Orbit TypeApollo
MOID0.269202 AU
Observations Used6128
Radar Obs Used1
Gaia Obs Used126
Oppositions20
Arc Total1971-2026
First Observation Used1971-03-24
Last Observation Used2026-04-04
Observations (7777)
Date Type RA Dec Mag Band Observatory
1996-02-27 18:45:56 C 17 25 58.16 -35 16 56.9 413
1996-02-27 18:48:16 C 17 25 58.68 -35 16 58.8 413
1996-03-26 19:09:52 C 20 49 18.43 -38 18 29.1 413
1996-03-26 19:13:23 C 20 49 19.69 -38 18 26.1 413
1996-03-27 19:17:17 C 20 57 59.93 -37 56 34.0 413
1996-03-27 19:20:18 C 20 58 01.00 -37 56 31.3 413
1997-02-11 12:07:51 C 10 43 18.99 +35 48 23.2 c 608
1997-02-11 12:38:02 C 10 43 16.21 +35 48 32.4 c 608
1997-02-19 10:46:16 C 10 26 07.31 +36 33 04.8 c 608
1997-02-19 11:35:15 C 10 26 02.72 +36 33 12.6 c 608
1997-02-20 11:16:00 C 10 23 52.93 +36 36 48.8 c 608
1997-02-20 11:36:35 C 10 23 51.01 +36 36 51.7 c 608
1997-03-17 04:44:58 C 09 36 44.64 +35 48 06.3 i 711
1997-03-17 05:03:57 C 09 36 43.46 +35 48 01.0 i 711
1999-01-23 11:51:59 C 12 15 47.16 +16 19 43.0 z 711
1999-01-23 12:11:02 C 12 15 46.77 +16 19 47.4 z 711
1999-02-23 09:22:52 C 11 41 21.78 +20 11 44.2 c 699
1999-02-23 09:52:16 C 11 41 19.59 +20 11 53.2 c 699
1999-02-23 10:21:43 C 11 41 17.29 +20 12 01.0 c 699
1999-03-15 04:52:57 C 11 03 09.45 +22 05 28.3 18.9 a 704
1999-03-15 05:18:54 C 11 03 07.21 +22 05 30.7 19.5 a 704
1999-03-15 05:44:56 C 11 03 04.98 +22 05 35.6 19.7 a 704
1999-03-15 06:10:58 C 11 03 02.95 +22 05 38.4 19.5 a 704
1999-04-12 05:47:04 C 10 18 07.41 +21 23 04.1 z 719
1999-04-12 06:01:56 C 10 18 06.85 +21 23 01.1 z 719
1999-04-12 06:48:37 C 10 18 04.68 +21 22 50.2 z 719
1999-04-12 06:56:38 C 10 18 04.15 +21 22 47.8 z 719
2000-01-08 10:04:17 C 22 32 00.28 +12 20 37.4 a 349
2000-01-08 10:06:35 C 22 32 00.72 +12 20 42.2 a 349
2000-01-08 10:13:39 C 22 32 02.31 +12 21 02.6 a 349
2000-01-25 18:03:03 C 00 03 56.36 +28 09 38.8 c 118
2000-01-25 18:05:43 C 00 03 56.95 +28 09 43.3 c 118
2000-01-27 17:29:15 C 00 14 14.02 +29 31 31.6 c 118
2000-01-27 17:39:27 C 00 14 16.20 +29 31 48.5 c 118
2001-01-26 10:54:10 C 13 16 02.67 +00 28 27.2 c 704
2001-01-26 11:59:15 C 13 16 03.20 +00 28 18.4 c 704
2001-01-26 12:20:53 C 13 16 03.38 +00 28 14.4 c 704
2001-02-04 03:01:04 C 13 16 47.27 +00 05 03.6 17.8 170
2001-02-04 03:21:48 C 13 16 47.21 +00 05 01.6 17.4 170
2001-02-04 04:05:39 C 13 16 46.99 +00 04 57.7 17.8 170
2001-02-17 09:08:31 C 13 12 25.48 -00 11 49.6 17.8 c 704
2001-02-17 09:28:46 C 13 12 24.93 -00 11 49.7 18.3 c 704
2001-02-17 09:48:58 C 13 12 24.39 -00 11 50.5 18.6 c 704
2001-02-17 10:09:14 C 13 12 23.80 -00 11 50.7 18.2 c 704
2001-02-17 10:29:29 C 13 12 23.26 -00 11 50.1 18.7 c 704
2001-03-03 07:28:29 C 12 58 40.45 -00 02 59.6 17.1 c 704
2001-03-03 07:47:21 C 12 58 39.31 -00 02 57.6 17.2 c 704
2001-03-03 08:06:16 C 12 58 38.20 -00 02 56.9 17.3 c 704
2001-03-03 08:25:10 C 12 58 37.07 -00 02 55.0 17.9 c 704
2001-03-03 08:44:12 C 12 58 35.98 -00 02 54.2 17.7 c 704
Radar Observations (1)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2015-11-25 18:18:00 332241055.93 4 us 2380 -1 -1
Station codes
-1 Arecibo (305-m, 1963–2020)