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
2022-03-09 09:03:51 S 11 30 10.500 +18 20 07.26 V C57
2022-03-09 09:03:51 s 1 -183253.95 3 +197145.10 670.0 C57
2022-03-09 09:13:51 S 11 30 09.559 +18 20 09.74 V C57
2022-03-09 09:13:51 s 1 -183416.45 0 +196502.20 2480.0 C57
2022-03-09 09:23:51 S 11 30 08.748 +18 20 09.31 V C57
2022-03-09 09:23:51 s 1 -183577.78 3 +195858.05 8700.0 C57
2022-03-09 09:33:51 S 11 30 07.694 +18 20 11.98 V C57
2022-03-09 09:33:51 s 1 -183737.94 7 +195212.65 9300.0 C57
2022-03-09 09:43:51 S 11 30 06.638 +18 20 17.09 V C57
2022-03-09 09:43:51 s 1 -183896.93 6 +194566.00 4260.0 C57
2022-03-09 10:03:51 S 11 30 04.738 +18 20 18.38 V C57
2022-03-09 10:03:51 s 1 -184211.36 8 +193268.93 7180.0 C57
2022-03-09 10:13:51 S 11 30 04.001 +18 20 20.15 V C57
2022-03-09 10:13:51 s 1 -184366.80 2 +192618.51 5090.0 C57
2022-03-09 10:23:51 S 11 30 03.132 +18 20 22.99 V C57
2022-03-09 10:23:51 s 1 -184521.04 0 +191966.84 7270.0 C57
2022-03-09 10:33:51 S 11 30 02.359 +18 20 22.88 V C57
2022-03-09 10:33:51 s 1 -184674.07 8 +191313.92 3690.0 C57
2022-03-09 10:43:51 S 11 30 01.709 +18 20 29.08 V C57
2022-03-09 10:43:51 s 1 -184825.90 9 +190659.74 4350.0 C57
2022-03-09 10:53:51 S 11 30 00.578 +18 20 31.27 V C57
2022-03-09 10:53:51 s 1 -184976.53 0 +190004.31 9200.0 C57
2022-03-09 11:03:51 S 11 29 59.914 +18 20 33.14 V C57
2022-03-09 11:03:51 s 1 -185125.93 4 +189347.62 8230.0 C57
2022-03-09 11:13:51 S 11 29 58.910 +18 20 36.92 V C57
2022-03-09 11:13:51 s 1 -185274.11 5 +188689.68 1410.0 C57
2022-03-09 11:23:51 S 11 29 58.128 +18 20 37.36 V C57
2022-03-09 11:23:51 s 1 -185421.07 0 +188030.48 8730.0 C57
2022-03-09 11:33:51 S 11 29 57.134 +18 20 40.45 V C57
2022-03-09 11:33:51 s 1 -185566.79 2 +187370.03 150.0 C57
2022-03-09 11:43:51 S 11 29 56.143 +18 20 43.40 V C57
2022-03-09 11:43:51 s 1 -185711.27 5 +186708.32 5650.0 C57
2022-03-09 11:53:51 S 11 29 55.308 +18 20 45.85 V C57
2022-03-09 11:53:51 s 1 -185854.51 5 +186045.36 5210.0 C57
2022-03-09 12:03:51 S 11 29 54.492 +18 20 46.68 V C57
2022-03-09 12:03:51 s 1 -185996.50 6 +185381.15 8810.0 C57
2022-03-09 12:13:51 S 11 29 53.630 +18 20 50.89 V C57
2022-03-09 12:13:51 s 1 -186137.24 2 +184715.68 6410.0 C57
2022-03-09 12:23:51 S 11 29 52.716 +18 20 51.90 V C57
2022-03-09 12:23:51 s 1 -186276.71 7 +184048.95 8000.0 C57
2022-03-09 12:33:51 S 11 29 51.778 +18 20 53.74 V C57
2022-03-09 12:33:51 s 1 -186414.92 7 +183380.97 3550.0 C57
2022-03-09 12:43:51 S 11 29 50.906 +18 20 55.46 V C57
2022-03-09 12:43:51 s 1 -186551.86 5 +182711.73 3040.0 C57
2022-03-09 12:53:51 S 11 29 50.107 +18 20 58.20 V C57
2022-03-09 12:53:51 s 1 -186687.52 6 +182041.24 6440.0 C57
2022-03-09 13:03:51 S 11 29 49.214 +18 21 01.76 V C57
2022-03-09 13:03:51 s 1 -186821.90 5 +181369.49 3730.0 C57
2022-03-09 13:13:51 S 11 29 48.022 +18 21 01.19 V C57
2022-03-09 13:13:51 s 1 -186954.99 5 +180696.49 4870.0 C57
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)