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JPL Small-Body Database Browser
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39207 (2000 XQ20)
Classification: Main-belt Asteroid          SPK-ID: 2039207
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03763564824110089 4.3935e-08  
a 2.621374538393539 1.4077e-08 au
q 2.522717408358381 1.1124e-07 au
i 10.84137256846989 5.5057e-06 deg
node 15.74454211042736 2.2011e-05 deg
peri 116.0360745478284 7.3534e-05 deg
M 156.8956433913591 7.0649e-05 deg
tp 2458324.883222624556
(2018-Jul-25.38322262)
0.00030288 TDB
period 1550.215382644303
4.24
1.2487e-05
3.419e-08
d
yr
n .232225795222032 1.8706e-09 deg/d
Q 2.720031668428696 1.4607e-08 au
  Orbit Determination Parameters
   # obs. used (total)      972  
   data-arc span      10132 days (27.74 yr)  
   first obs. used      1991-10-06  
   last obs. used      2019-07-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55193  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 05:07:55  

Additional Information
 Earth MOID = 1.55236 au 
 Jupiter MOID = 2.27741 au 
 T_jup = 3.378 
[ 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 14.7   n/a MPO337576  

39207 (2000 XQ20)          Discovered 2000-Dec-04 by LINEAR at Socorro
Reference: 20020328/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2000 XQ20 = 1998 HR87 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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