699 Hela

699 Hela is a Mars crossing asteroid. With an absolute magnitude of 11.7,[2] the asteroid is about 12–27 km in diameter.[3]

699 Hela
Lightcurve-based 3D-model of Hela
Discovery
Discovered byJ. Helffrich
Discovery siteHeidelberg
Discovery date5 June 1910
Designations
(699) Hela
Pronunciation/ˈhlə/[1]
1910 KD
Mars crosser[2]
Orbital characteristics[2]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc113.38 yr (41411 d)
Aphelion3.6831 AU (550.98 Gm)
Perihelion1.5414 AU (230.59 Gm)
2.6123 AU (390.79 Gm)
Eccentricity0.40995
4.22 yr (1542.1 d)
3.93957°
0° 14m 0.384s / day
Inclination15.297°
242.548°
91.479°
Earth MOID0.62609 AU (93.662 Gm)
Mars MOID0.4063 AU (60.78 Gm)
Jupiter MOID2.10581 AU (315.025 Gm)
TJupiter3.239
Physical characteristics
Dimensions12 - 27 km[3]
3.3962 h (0.14151 d)[2]
11.72[2]

    References

    1. Noah Webster (1884) A Practical Dictionary of the English Language
    2. "JPL Small-Body Database Browser: 699 Hela (1910 KD)". Jet Propulsion Laboratory. Retrieved 7 May 2016.
    3. "Absolute Magnitude (H)". NASA/JPL. Retrieved 24 June 2014.


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