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80331 (1999 XM92)
Classification: Main-belt Asteroid          SPK-ID: 2080331
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0801432274370209 3.9019e-08  
a 2.258851941075251 9.5207e-09 au
q 2.077820256215101 9.217e-08 au
i 3.262690901201072 3.6186e-06 deg
node 90.88423674189858 8.0816e-05 deg
peri 32.41128546101193 8.5365e-05 deg
M 343.5254180854358 2.8736e-05 deg
tp 2459057.246878418298
(2020-Jul-26.74687842)
9.9072e-05 TDB
period 1240.023955480614
3.40
7.8398e-06
2.146e-08
d
yr
n .2903169720301651 1.8355e-09 deg/d
Q 2.4398836259354 1.0284e-08 au
  Orbit Determination Parameters
   # obs. used (total)      680  
   data-arc span      9922 days (27.16 yr)  
   first obs. used      1992-11-26  
   last obs. used      2020-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54273  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 14:48:59  

Additional Information
 Earth MOID = 1.09438 au 
 Jupiter MOID = 2.59423 au 
 T_jup = 3.615 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.2   n/a MPO502639  
rotation period rot_per 9.151 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

80331 (1999 XM92)          Discovered 1999-Dec-07 by LINEAR at Socorro
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16

[ show close-approach data ]
Alternate Designations
 1999 XM92 = 1997 CW21 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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