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101044 (1998 QU99)
Classification: Main-belt Asteroid          SPK-ID: 2101044
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2223870279906935 3.9285e-08  
a 2.326088017166954 9.167e-09 au
q 1.80879621618443 9.0186e-08 au
i 3.041187983009388 5.7651e-06 deg
node 97.04651746337893 8.6325e-05 deg
peri 279.4783440409512 8.7629e-05 deg
M 28.28229690411318 1.4437e-05 deg
tp 2458898.699521516515
(2020-Feb-19.19952152)
5.1676e-05 TDB
period 1295.799007354482
3.55
7.66e-06
2.097e-08
d
yr
n .2778208641593113 1.6423e-09 deg/d
Q 2.843379818149478 1.1206e-08 au
  Orbit Determination Parameters
   # obs. used (total)      434  
   data-arc span      8090 days (22.15 yr)  
   first obs. used      1998-08-26  
   last obs. used      2020-10-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56718  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:02:46  

Additional Information
 Earth MOID = .81337 au 
 Jupiter MOID = 2.62126 au 
 T_jup = 3.539 
[ 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 16.4   n/a MPO337989  

101044 (1998 QU99)          Discovered 1998-Aug-26 by Elst, E. W. at La Silla
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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