1993 DA

1993 DA
Discovery[1][2]
Discovered bySpacewatch
Discovery siteKitt Peak Obs.
Discovery date17 February 1993
Designations
1993 DA
Aten · NEO[1]
Orbital characteristics[1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 6
Observation arc(5 days)
Aphelion1.0231 AU
Perihelion0.8491 AU
0.9361 AU
Eccentricity0.0929
0.91 yr (331 days)
228.74°
1° 5m 17.52s / day
Inclination12.385°
329.05°
354.06°
Earth MOID0.0355 AU · 13.8 LD
Physical characteristics
Dimensions13–30 m[3]
26.4[1]

1993 DA is a sub-kilometer asteroid, classified as a near-Earth object of the Aten group. It has only been observed during 5 days in February 1993, and not been detected ever since. The small body measures approximately 20 meters in diameter based on an absolute magnitude of 26.4, and has an Earth minimum orbital intersection distance of 13.8 lunar distances or 0.0355 AU (5,310,000 km).[1][2]

  1. ^ a b c d e Cite error: The named reference jpldata was invoked but never defined (see the help page).
  2. ^ a b Cite error: The named reference MPC-1993DA was invoked but never defined (see the help page).
  3. ^ Cite error: The named reference h was invoked but never defined (see the help page).