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20727 (1999 XV123)
Classification: Main-belt Asteroid          SPK-ID: 2020727
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03780830146388214 4.1598e-08  
a 3.014212884201014 1.6641e-08 au
q 2.900250614798824 1.2726e-07 au
i 8.435511775584741 3.7279e-06 deg
node 295.2160287180834 2.8363e-05 deg
peri 262.9926658020203 6.448e-05 deg
M 227.2719845944144 6.0675e-05 deg
tp 2459905.224564092864
(2022-Nov-21.72456409)
0.0003248 TDB
period 1911.434012617314
5.23
1.5829e-05
4.334e-08
d
yr
n .1883402710340256 1.5597e-09 deg/d
Q 3.128175153603204 1.727e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1609  
   data-arc span      10908 days (29.86 yr)  
   first obs. used      1991-04-14  
   last obs. used      2021-02-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47911  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:28:51  

Additional Information
 Earth MOID = 1.91309 au 
 Jupiter MOID = 1.93646 au 
 T_jup = 3.231 
[ 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 13.62   n/a E2021B10  

20727 (1999 XV123)          Discovered 1999-Dec-07 by CSS at Catalina
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 XV123 = 1996 EU15 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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