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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2902999676943989 4.4409e-08  
a 2.295543664358444 4.5604e-09 au
q 1.629147412754105 1.0084e-07 au
i 7.007305407945823 4.7764e-06 deg
node 201.7562833068545 2.0167e-05 deg
peri 197.1989976324564 2.1716e-05 deg
M 113.2637153148067 5.1731e-06 deg
tp 2458800.817561310839
(2019-Nov-13.31756131)
1.8432e-05 TDB
period 1270.359863511276
3.48
3.7856e-06
1.036e-08
d
yr
n .2833842679860489 8.4447e-10 deg/d
Q 2.961939915962782 5.8843e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1267  
   data-arc span      7905 days (21.64 yr)  
   first obs. used      1998-08-19  
   last obs. used      2020-04-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45529  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:34:52  

Additional Information
 Earth MOID = .636989 au 
 Jupiter MOID = 2.46773 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 15.64   n/a E2021B55  

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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