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
1978-05-07 03:46:21 A 10 35 55.61 +05 59 46.9 A 801
1985-03-21 06:57:50 A 11 35 38.69 +12 32 00.3 A 801
1992-02-03 10:48:59 12 25 47.28 +12 58 24.6 c 261
1992-02-03 11:53:59 12 25 45.42 +12 58 36.9 c 261
1992-12-26 22:42:06 C 22 14 04.62 +34 02 25.4 801
1992-12-26 22:47:33 C 22 14 06.14 +34 02 39.9 801
1993-01-24 01:17:49 C 01 16 23.27 +49 06 31.7 z 801
1993-01-24 01:35:57 C 01 16 27.63 +49 06 38.1 z 801
1993-01-25 22:39:48 C 01 27 13.86 +49 21 35.5 z 801
1993-01-25 22:45:26 C 01 27 15.17 +49 21 36.9 z 801
1993-02-13 02:06:48 02 58 00.53 +49 37 04.6 711
1993-02-14 02:19:38 03 02 24.26 +49 33 24.0 711
1993-03-27 02:36:19 05 23 16.33 +44 52 25.8 711
1993-03-29 02:32:38 05 28 49.88 +44 35 54.5 711
1994-03-05 01:29:46 C 13 32 42.70 -07 58 07.3 z 557
1994-03-05 01:38:03 C 13 32 42.34 -07 58 08.8 z 557
1994-03-05 02:10:21 C 13 32 40.93 -07 58 15.4 z 557
1994-03-05 02:18:38 C 13 32 40.55 -07 58 17.1 z 557
1994-03-14 09:20:06 C 13 20 27.74 -08 40 35.9 z 689
1994-04-01 07:27:49 C 12 38 50.15 -09 39 09.6 z 689
1994-04-05 21:30:12 C 12 24 38.43 -09 47 08.7 z 557
1994-04-05 21:56:38 C 12 24 34.82 -09 47 10.3 z 557
1994-04-05 23:57:14 C 12 24 18.35 -09 47 17.1 z 557
1994-04-06 00:19:45 C 12 24 15.30 -09 47 18.3 z 557
1994-04-07 21:43:24 C 12 18 05.46 -09 49 34.4 z 557
1994-04-07 22:02:21 C 12 18 02.80 -09 49 35.3 z 557
1994-04-08 00:21:06 C 12 17 43.38 -09 49 41.0 z 557
1994-04-08 00:29:23 C 12 17 42.23 -09 49 41.2 z 557
1994-04-08 03:42:29 C 12 17 15.98 -09 49 49.0 z 801
1994-04-08 03:58:07 C 12 17 13.78 -09 49 49.7 z 801
1994-04-11 04:06:55 C 12 07 08.38 -09 52 10.3 z 801
1994-04-11 04:12:43 C 12 07 07.52 -09 52 10.5 z 801
1994-04-21 21:15:32 C 11 30 38.48 -09 51 29.3 z 046
1994-04-21 21:17:02 C 11 30 38.23 -09 51 29.0 z 046
1994-04-28 19:51:59 C 11 08 35.91 -09 47 52.0 z 557
1994-04-28 20:57:33 C 11 08 27.52 -09 47 50.8 z 557
1994-05-13 00:00:15 A 10 32 34.36 -09 51 37.2 808
1994-05-13 00:40:08 A 10 32 30.72 -09 51 40.8 808
1994-06-17 09:13:49 C 09 51 03.41 -12 40 21.3 413
1994-06-17 09:20:43 C 09 51 03.18 -12 40 23.5 413
1994-06-20 08:37:55 C 09 48 52.60 -13 02 03.5 413
1994-06-20 08:42:07 C 09 48 52.48 -13 02 04.7 413
1994-11-23 04:28:44 C 10 54 21.33 +40 23 03.0 046
1994-11-23 04:30:40 C 10 54 21.42 +40 23 03.7 046
1994-11-23 04:35:16 C 10 54 21.56 +40 23 05.9 046
1995-01-18 00:04:35 C 09 51 19.53 +54 33 27.9 046
1995-01-18 00:07:35 C 09 51 19.14 +54 33 28.6 046
1995-01-18 00:09:47 C 09 51 18.77 +54 33 29.6 046
1996-02-26 19:00:15 C 17 20 51.51 -34 55 34.4 413
1996-02-26 19:03:44 C 17 20 52.23 -34 55 37.7 413
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)