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101027 (1998 QL71)
Classification: Mars-crossing Asteroid          SPK-ID: 2101027
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2901978252573366 4.4805e-08  
a 2.295731955548428 4.5683e-09 au
q 1.629515534674502 1.0172e-07 au
i 7.00664782705048 4.819e-06 deg
node 201.7623997445379 2.0188e-05 deg
peri 197.2118309262079 2.175e-05 deg
M 56.58092794310409 5.2094e-06 deg
tp 2458800.813934026289
(2019-Nov-13.31393403)
1.8484e-05 TDB
period 1270.516167971357
3.48
3.7923e-06
1.038e-08
d
yr
n .2833494048130176 8.4576e-10 deg/d
Q 2.961948376422355 5.894e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1264  
   data-arc span      7905 days (21.64 yr)  
   first obs. used      1998-08-19  
   last obs. used      2020-04-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45528  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:02:52  

Additional Information
 Earth MOID = .638416 au 
 Jupiter MOID = 2.46657 au 
 T_jup = 3.528 
[ 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 15.6   n/a MPO502724  

101027 (1998 QL71)          Discovered 1998-Aug-24 by LINEAR at Socorro
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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