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101049 (1998 QD105)
Classification: Main-belt Asteroid          SPK-ID: 2101049
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1734432031932804 3.2865e-08  
a 2.413387584228962 1.1234e-08 au
q 1.994801911073398 8.2256e-08 au
i 11.34752186800867 3.5157e-06 deg
node 134.2543610932755 2.5254e-05 deg
peri 170.7621771087863 2.9124e-05 deg
M 11.26505504459547 1.4721e-05 deg
tp 2459157.648122423925
(2020-Nov-04.14812242)
5.5974e-05 TDB
period 1369.427478722193
3.75
9.5621e-06
2.618e-08
d
yr
n .2628835813459172 1.8356e-09 deg/d
Q 2.831973257384526 1.3183e-08 au
  Orbit Determination Parameters
   # obs. used (total)      531  
   data-arc span      8093 days (22.16 yr)  
   first obs. used      1998-06-23  
   last obs. used      2020-08-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57401  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:34:58  

Additional Information
 Earth MOID = .97877 au 
 Jupiter MOID = 2.43367 au 
 T_jup = 3.471 
[ 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 16.27   n/a E2021B55  

101049 (1998 QD105)          Discovered 1998-Aug-25 by Elst, E. W. at La Silla
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1998 QD105 = 2002 UR7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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