699 Hela

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699 Hela
699Hela (Lightcurve Inversion).png
A three-dimensional model of 699 Hela based on its light curve.
Discovery
Discovered by J. Helffrich
Discovery site Heidelberg
Discovery date 5 June 1910
Designations
MPC designation (699) Hela
1910 KD
Mars crosser[1]
Orbital characteristics[1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc 113.38 yr (41411 d)
Aphelion 3.6831 AU (550.98 Gm)
Perihelion 1.5414 AU (230.59 Gm)
2.6123 AU (390.79 Gm)
Eccentricity 0.40995
4.22 yr (1542.1 d)
3.93957°
0° 14m 0.384s / day
Inclination 15.297°
242.548°
91.479°
Earth MOID 0.62609 AU (93.662 Gm)
Jupiter MOID 2.10581 AU (315.025 Gm)
Jupiter Tisserand parameter 3.239
Physical characteristics
Dimensions 12 - 27 km[2]
3.3962 h (0.14151 d)[1]
11.72[1]

699 Hela is a Mars crossing asteroid. With an absolute magnitude of 11.7,[1] the asteroid is about 12–27 km in diameter.[2]

References[edit]

  1. ^ a b c d e "JPL Small-Body Database Browser: 699 Hela (1910 KD)". Jet Propulsion Laboratory. Retrieved 7 May 2016. 
  2. ^ a b "Absolute Magnitude (H)". NASA/JPL. Retrieved 2014-06-24. 

External links[edit]