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JPL Small-Body Database Browser
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49790 (1999 XF20)
Classification: Main-belt Asteroid          SPK-ID: 2049790
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1683497366783892 4.9741e-08  
a 2.276035490187308 7.7375e-09 au
q 1.892865514743606 1.1072e-07 au
i 2.518284365017018 3.9329e-06 deg
node 112.2030155955146 0.00011396 deg
peri 42.63930298564875 0.00011461 deg
M 142.7017912728644 1.3947e-05 deg
tp 2458103.342614611644
(2017-Dec-15.84261461)
4.7149e-05 TDB
period 1254.200505427305
3.43
6.3956e-06
1.751e-08
d
yr
n .2870354448448801 1.4637e-09 deg/d
Q 2.65920546563101 9.0401e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1094  
   data-arc span      14524 days (39.76 yr)  
   first obs. used      1980-02-20  
   last obs. used      2019-11-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54181  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 04:23:56  

Additional Information
 Earth MOID = .904328 au 
 Jupiter MOID = 2.33176 au 
 T_jup = 3.589 
[ 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 MPO493211  

49790 (1999 XF20)          Discovered 1999-Dec-05 by LINEAR at Socorro
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 XF20 = 1980 DZ2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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