2102 Tantalus

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Tantalus
Discovery
Discovered by C. Kowal
Discovery site Palomar Observatory
Discovery date 27 December 1975
Designations
MPC designation 2102
Named after
Tantalus
1975 YA
PHA[1]
Orbital characteristics[1]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 0
Observation arc 38.63 yr (14111 days)
Aphelion 1.675969247626000 AU (250.72143080353 Gm)
Perihelion 0.9041343191800040 AU (135.25656897612 Gm)
1.290051783403 AU (192.9889998898 Gm)
Eccentricity .299148816495564
1.47 yr (535.19 d)
85.78643003020903°
0° 40m 21.563s / day
Inclination 64.00535930263230°
94.36993941983230°
61.55509931046220°
Earth MOID 0.0430913 AU (6.44637 Gm)
Jupiter MOID 3.76984 AU (563.960 Gm)
Jupiter Tisserand parameter 4.450
Physical characteristics
Dimensions 2-4 km[2]
2.384 h (0.0993 d)
2.384 h[1]
Q[1]
16.0[1]

2102 Tantalus (1975 YA) is an Apollo asteroid discovered on December 27, 1975 by C. Kowal at Palomar Observatory.[1] It is a Q-type asteroid.[1]

2102 Tantalus is a potentially hazardous asteroid (PHA) because its minimum orbit intersection distance (MOID) is less than 0.05 AU and its diameter is greater than 150 meters. The Earth-MOID is 0.0439 AU (6,570,000 km; 4,080,000 mi).[1] Its orbit is well-determined for the next several hundred years.

It will pass 0.04439 AU (6,641,000 km; 4,126,000 mi) from Earth on 2038-Dec-27, which is just slightly closer than the 1975-Dec-26 approach of 0.046 AU.[1] The asteroid is about 2–4 km in diameter.[2]

References[edit]

  1. ^ a b c d e f g h i "JPL Small-Body Database Browser: 2102 Tantalus". Jet Propulsion Laboratory. Retrieved 16 April 2016. 
  2. ^ a b "Absolute Magnitude (H)". NASA/JPL. Retrieved 2015-05-10. 

External links[edit]