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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 
[ 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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2047-Mar-07 08:31 < 00:01 Thisb 0.0365410975115417 0.0365349647436891 0.0365472311513053 5.3713268193955 5.37132678465696 2468776.854818779 0.561904377459799 417.793476193433 46.869411265995 -43.3033436567635 80530.9843899081 T 18 CATAB v2.0e-lin.ifort 2019-May-30 04:07:19 2019-May-30 04:07

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