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JPL Small-Body Database Browser
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49850 (1999 XM94)
Classification: Main-belt Asteroid          SPK-ID: 2049850
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1735108206091281 4.4683e-08  
a 2.328780428704072 8.1103e-09 au
q 1.924711825501152 1.027e-07 au
i 1.161108098326292 4.0556e-06 deg
node 270.1587794935092 0.00025038 deg
peri 231.9510161809122 0.00025071 deg
M 137.222728691074 1.3411e-05 deg
tp 2458105.716975436273
(2017-Dec-18.21697544)
4.7275e-05 TDB
period 1298.049459750527
3.55
6.781e-06
1.857e-08
d
yr
n .2773392009802066 1.4488e-09 deg/d
Q 2.732849031906993 9.5175e-09 au
  Orbit Determination Parameters
   # obs. used (total)      900  
   data-arc span      12266 days (33.58 yr)  
   first obs. used      1986-04-02  
   last obs. used      2019-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57305  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 06:44:01  

Additional Information
 Earth MOID = .938179 au 
 Jupiter MOID = 2.289 au 
 T_jup = 3.552 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.3   n/a MPO280013  

49850 (1999 XM94)          Discovered 1999-Dec-07 by LINEAR at Socorro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 XM94 = 1986 GD2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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