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120981 (1998 XZ5)
Classification: Main-belt Asteroid          SPK-ID: 2120981
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1856395900075299 3.2117e-08  
a 2.334555156270285 1.0249e-08 au
q 1.901169294210305 7.5763e-08 au
i 2.184924226493941 5.2252e-06 deg
node 194.1571916910467 0.00010357 deg
peri 115.2751628210095 0.000106 deg
M 100.5005654115248 1.7509e-05 deg
tp 2458636.777104483244
(2019-Jun-02.27710448)
6.3732e-05 TDB
period 1302.880653953182
3.57
8.5794e-06
2.349e-08
d
yr
n .2763108032249103 1.8195e-09 deg/d
Q 2.767941018330266 1.2151e-08 au
  Orbit Determination Parameters
   # obs. used (total)      316  
   data-arc span      7668 days (20.99 yr)  
   first obs. used      1998-11-27  
   last obs. used      2019-11-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64232  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 10:03:13  

Additional Information
 Earth MOID = .887914 au 
 Jupiter MOID = 2.49217 au 
 T_jup = 3.544 
[ 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 17.1   n/a MPO493691  

120981 (1998 XZ5)          Discovered 1998-Dec-08 by Spacewatch at Kitt Peak
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

[ show close-approach data ]
Alternate Designations
 1998 XZ5 = 2005 TR26 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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