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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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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0801432282218615 3.9101e-08  
a 2.25885194067124 9.5926e-09 au
q 2.07782025407063 9.2422e-08 au
i 3.262691167555438 3.6273e-06 deg
node 90.8842354162267 8.0842e-05 deg
peri 32.41128581529058 8.5415e-05 deg
M 343.525419178141 2.8848e-05 deg
tp 2459057.246874639239
(2020-Jul-26.74687464)
9.9461e-05 TDB
period 1240.023955147934
3.40
7.899e-06
2.163e-08
d
yr
n .2903169721080527 1.8493e-09 deg/d
Q 2.43988362727185 1.0361e-08 au
  Orbit Determination Parameters
   # obs. used (total)      677  
   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      .54024  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 18:57:05  

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

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