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
2004-02-24 22:22:48 C 09 47 54.31 +40 57 30.5 r 240
2004-03-01 05:39:08 C 09 36 45.52 +40 41 31.2 c 704
2004-03-01 05:56:11 C 09 36 44.12 +40 41 28.0 c 704
2004-03-01 06:12:46 C 09 36 42.65 +40 41 26.0 c 704
2004-03-01 06:29:22 C 09 36 41.22 +40 41 22.0 c 704
2004-03-09 21:18:59 09 21 14.19 +39 50 32.0 o 084
2004-03-15 05:03:02 C 09 13 35.64 +39 07 25.7 r H41
2004-03-15 05:06:33 C 09 13 35.46 +39 07 26.5 r H41
2004-03-15 05:09:10 C 09 13 35.22 +39 07 27.1 r H41
2004-03-15 05:11:56 C 09 13 35.15 +39 07 25.2 r H41
2004-03-23 04:45:33 C 09 04 57.87 +37 51 17.3 d 703
2004-03-23 05:05:10 C 09 04 57.16 +37 51 09.0 d 703
2004-03-23 05:23:21 C 09 04 56.42 +37 51 00.9 d 703
2004-03-23 05:41:30 C 09 04 55.74 +37 50 53.4 d 703
2004-04-05 20:23:01 C 08 57 35.05 +35 23 42.9 r 170
2004-04-05 20:29:29 C 08 57 34.97 +35 23 39.7 r 170
2004-04-23 02:57:40 C 08 58 53.90 +32 08 08.0 d 703
2004-04-23 03:10:54 C 08 58 54.01 +32 08 02.5 d 703
2004-04-23 03:24:06 C 08 58 54.31 +32 07 55.7 d 703
2004-04-23 03:37:16 C 08 58 54.44 +32 07 51.8 d 703
2004-05-11 03:52:05 C 09 09 07.35 +28 45 29.0 c 704
2004-05-11 04:04:49 C 09 09 07.70 +28 45 22.4 c 704
2004-05-11 04:30:17 C 09 09 08.56 +28 45 10.7 c 704
2004-05-23 04:10:05 C 09 19 18.33 +26 31 56.5 d 703
2004-05-23 04:20:20 C 09 19 18.68 +26 31 52.5 d 703
2004-05-23 04:30:55 C 09 19 19.16 +26 31 47.4 d 703
2004-05-23 04:41:26 C 09 19 19.43 +26 31 43.0 d 703
2006-01-12 12:02:48 C 12 05 31.71 +19 20 55.3 o 644
2006-01-12 12:23:17 C 12 05 31.46 +19 21 00.0 o 644
2006-01-12 12:38:29 C 12 05 31.33 +19 21 03.4 o 644
2006-01-13 10:38:41 C 12 05 17.97 +19 26 13.1 o 699
2006-01-13 11:04:58 C 12 05 17.64 +19 26 19.3 o 699
2006-01-13 11:31:15 C 12 05 17.35 +19 26 26.2 o 699
2006-01-13 11:57:33 C 12 05 17.00 +19 26 32.5 o 699
2006-01-25 12:14:27 C 11 59 12.94 +20 49 06.4 o 644
2006-01-25 12:30:04 C 11 59 12.43 +20 49 11.6 o 644
2006-01-25 12:48:01 C 11 59 11.84 +20 49 17.5 o 644
2006-02-01 08:06:27 C 11 53 01.03 +21 46 07.5 r 703
2006-02-01 08:18:18 C 11 53 00.42 +21 46 11.9 r 703
2006-02-01 08:30:10 C 11 52 59.91 +21 46 16.9 r 703
2006-02-01 08:42:08 C 11 52 59.41 +21 46 20.5 r 703
2006-02-02 10:09:52 C 11 51 50.14 +21 55 38.4 r 703
2006-02-02 10:18:49 C 11 51 49.71 +21 55 42.0 r 703
2006-02-02 10:27:47 C 11 51 49.32 +21 55 45.1 r 703
2006-02-02 10:36:48 C 11 51 48.88 +21 55 48.5 r 703
2006-02-04 08:25:52 C 11 49 37.16 +22 12 44.6 c 704
2006-02-04 08:47:08 C 11 49 36.08 +22 12 52.7 c 704
2006-02-04 09:06:17 C 11 49 35.09 +22 13 00.0 c 704
2006-02-04 09:24:59 C 11 49 34.14 +22 13 06.6 c 704
2006-02-04 09:43:37 C 11 49 33.18 +22 13 13.7 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)