(53319) 1999 JM8

(53319) 1999 JM8
Radar image of 1999 JM8 taken at Arecibo Observatory
Discovery[1][2]
Discovered byLINEAR
Discovery siteLincoln Lab's ETS
Discovery date13 May 1999
Designations
(53319) 1999 JM8
1999 JM8 · 1990 HD1
NEO · PHA · Apollo[1][2]
Mars-crosser
Orbital characteristics[1]
Epoch 2022-Aug-09 (JD 2459800.5)
Uncertainty parameter 0
Observation arc31.03 yr
Aphelion4.4741 AU
Perihelion0.9759 AU
2.7236 AU
Eccentricity0.6417
4.49 yr (1,642 days)
19.009°
0° 13m 8.4s / day
Inclination13.842°
133.62°
166.83°
Earth MOID0.0258 AU (10.0 LD)
Jupiter MOID0.85 AU
Physical characteristics
Dimensions5 km[3]
5.4±1.2 km[4]
6.4 km[5]
7 km[6][7]
136±2 h[8]
0.02±0.01[4]
0.03 (derived)[9]
SMASS = X:[1] · C[10]
X(Tholen)[9]
15.00[10] · 15.14±0.38[11] · 15.2[1][9] · 16.5[4]

(53319) 1999 JM8 is an asteroid, slow rotator and tumbler, classified as a near-Earth object and potentially hazardous asteroid (PHA) of the Apollo group, approximately 7 kilometers (4 miles) in diameter, making it the largest PHA known to exist.[12] It was discovered on 13 May 1999, by astronomers of the Lincoln Near-Earth Asteroid Research at the Lincoln Laboratory's Experimental Test Site near Socorro, New Mexico.[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 c Cite error: The named reference MPC-object was invoked but never defined (see the help page).
  3. ^ Cite error: The named reference Benner-2001a was invoked but never defined (see the help page).
  4. ^ a b c Cite error: The named reference Reddy-2012 was invoked but never defined (see the help page).
  5. ^ Cite error: The named reference Brozovic-2012 was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference Benner-2001c was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference Benner-2002b was invoked but never defined (see the help page).
  8. ^ Cite error: The named reference Pravec-2005a was invoked but never defined (see the help page).
  9. ^ a b c Cite error: The named reference lcdb was invoked but never defined (see the help page).
  10. ^ a b Cite error: The named reference Carry-2016 was invoked but never defined (see the help page).
  11. ^ Cite error: The named reference Veres-2015 was invoked but never defined (see the help page).
  12. ^ "3200 Phaethon".