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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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03763563245300169 4.4312e-08  
a 2.621374533918426 1.4335e-08 au
q 2.522717445438214 1.1213e-07 au
i 10.84136842943894 5.5154e-06 deg
node 15.74453818566449 2.2301e-05 deg
peri 116.0361167254428 7.3671e-05 deg
M 156.8956017912312 7.0719e-05 deg
tp 2458324.883403491187
(2018-Jul-25.38340349)
0.00030315 TDB
period 1550.215378674599
4.24
1.2716e-05
3.481e-08
d
yr
n .2322257958167028 1.9048e-09 deg/d
Q 2.720031622398638 1.4874e-08 au
  Orbit Determination Parameters
   # obs. used (total)      939  
   data-arc span      10079 days (27.59 yr)  
   first obs. used      1991-10-06  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54324  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 04:07:09  

Additional Information
 Earth MOID = 1.55236 au 
 Jupiter MOID = 2.27741 au 
 T_jup = 3.378 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456634.5 (2013-Dec-08.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03923986484813973 4.3796e-08  
q 2.51794944843473 1.1127e-07 au
tp 2456770.413531026176
(2014-Apr-22.91353103)
0.00029032 TDB
node 15.88974198040306 2.2297e-05 deg
peri 114.4496201369017 7.1572e-05 deg
i 10.84433644137752 5.5152e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      939  
   data-arc span      10079 days (27.59 yr)  
   first obs. used      1991-10-06  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54324  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 04:07:09  

Additional Information
 Jupiter MOID = 2.27741 au 
 T_jup = 3.378 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.918046844882118E-15 -4.840458105496831E-15 3.55132105250091E-12 9.267445322961585E-15 7.903876968221832E-13 -1.949042958944243E-15
q -4.840458105496831E-15 1.238163735557083E-14 -8.441055595380719E-12 -2.242323624477432E-14 -1.87487180988583E-12 4.985954908106959E-15
tp 3.55132105250091E-12 -8.441055595380719E-12 8.428768104616879E-8 1.959880014197186E-11 1.975812316637947E-8 1.851437201017356E-11
node 9.267445322961585E-15 -2.242323624477432E-14 1.959880014197186E-11 4.971367323628262E-10 -4.833844658347482E-10 -1.560805258307756E-11
peri 7.903876968221832E-13 -1.87487180988583E-12 1.975812316637947E-8 -4.833844658347482E-10 5.122537367967982E-9 1.969801557250469E-11
i -1.949042958944243E-15 4.985954908106959E-15 1.851437201017356E-11 -1.560805258307756E-11 1.969801557250469E-11 3.041689348006653E-11

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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