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
2024-03-30 10:06:31 C 12 28 30.760 -05 56 47.72 V 703
2024-03-31 11:11:12 C 12 25 33.886 -05 56 20.90 V T05
2024-03-31 11:19:00 C 12 25 32.938 -05 56 20.62 V T05
2024-03-31 12:10:15 C 12 25 26.702 -05 56 19.68 V T05
2024-03-31 12:45:52 C 12 25 22.375 -05 56 18.82 V T05
2024-03-31 21:43:20 C 12 24 18.888 -05 55 57.72 V M22
2024-03-31 21:45:56 C 12 24 18.566 -05 55 57.58 V M22
2024-03-31 21:51:12 C 12 24 17.926 -05 55 57.47 V M22
2024-03-31 22:01:11 C 12 24 16.702 -05 55 57.18 V M22
2024-04-02 05:17:50 C 12 20 30.679 -05 55 23.99 Z U76
2024-04-02 05:34:47 C 12 20 28.582 -05 55 23.63 Z U76
2024-04-02 05:50:23 C 12 20 26.654 -05 55 23.30 Z U76
2024-04-02 09:50:50 C 12 19 57.112 -05 55 14.57 X F52
2024-04-02 10:05:59 C 12 19 55.221 -05 55 14.17 X F52
2024-04-02 10:21:05 C 12 19 53.326 -05 55 13.73 X F52
2024-04-02 14:01:45 C 12 19 26.75 -05 54 57.1 v 323
2024-04-02 14:53:24 C 12 19 20.31 -05 54 55.8 v 323
2024-04-02 15:01:19 B 12 19 19.53 -05 55 04.8 Z O53
2024-04-02 15:24:11 B 12 19 16.67 -05 55 04.1 Z O53
2024-04-02 15:47:11 B 12 19 13.79 -05 55 03.5 Z O53
2024-04-02 18:20:02 C 12 18 55.368 -05 54 49.28 X L68
2024-04-02 18:25:26 C 12 18 54.703 -05 54 49.25 X L68
2024-04-02 18:30:42 C 12 18 54.062 -05 54 49.75 X L68
2024-04-03 14:01:07 C 12 16 29.84 -05 54 14.3 u 323
2024-04-03 14:20:28 C 12 16 27.47 -05 54 13.1 u 323
2024-04-03 15:40:04 B 12 16 17.53 -05 54 20.3 Z O53
2024-04-03 15:55:15 B 12 16 15.61 -05 54 19.9 Z O53
2024-04-03 16:10:00 B 12 16 13.75 -05 54 19.5 Z O53
2024-04-03 19:46:26 C 12 15 47.11 -05 54 15.3 V 088
2024-04-03 19:49:39 C 12 15 46.71 -05 54 15.3 V 088
2024-04-03 19:53:21 C 12 15 46.22 -05 54 15.2 V 088
2024-04-03 23:16:48 B 12 15 20.803 -05 54 09.90 X J57
2024-04-04 01:05:20 B 12 15 07.051 -05 54 06.37 X J57
2024-04-04 01:50:51 B 12 15 01.303 -05 54 04.90 X J57
2024-04-04 06:58:31 C 12 14 23.352 -05 53 53.63 V 703
2024-04-04 07:01:46 C 12 14 22.938 -05 53 53.41 V 703
2024-04-04 07:05:01 C 12 14 22.517 -05 53 53.41 V 703
2024-04-04 07:08:15 C 12 14 22.114 -05 53 53.48 V 703
2024-04-04 14:29:13 B 12 13 27.60 -05 53 35.1 Z O53
2024-04-04 14:51:57 B 12 13 24.70 -05 53 34.3 Z O53
2024-04-04 15:16:22 B 12 13 21.58 -05 53 33.5 Z O53
2024-04-04 20:14:33 B 12 12 44.359 -05 53 27.35 q D64
2024-04-04 20:30:06 B 12 12 42.391 -05 53 26.38 q D64
2024-04-04 20:48:04 B 12 12 40.070 -05 53 26.09 q D64
2024-04-04 20:54:23 B 12 12 39.355 -05 53 26.27 Z C95
2024-04-04 21:06:10 B 12 12 37.853 -05 53 25.91 Z C95
2024-04-04 21:17:53 B 12 12 36.360 -05 53 25.51 Z C95
2024-04-04 21:29:38 B 12 12 34.874 -05 53 25.12 Z C95
2024-04-04 21:41:22 B 12 12 33.377 -05 53 24.65 Z C95
2024-04-04 21:53:06 B 12 12 31.882 -05 53 24.29 Z C95
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)