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109608 (2001 QL287)
Classification: Main-belt Asteroid          SPK-ID: 2109608
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1605145078857117 5.8631e-08  
a 2.546978445714235 1.4703e-08 au
q 2.1381514539049 1.529e-07 au
i 3.560394343960737 4.9035e-06 deg
node 265.0321340240254 9.9169e-05 deg
peri 20.78316266543465 0.00010028 deg
M 265.0899409468414 1.5787e-05 deg
tp 2459391.922759393169
(2021-Jun-26.42275939)
6.5621e-05 TDB
period 1484.691873414773
4.06
1.2856e-05
3.52e-08
d
yr
n .2424745541120289 2.0996e-09 deg/d
Q 2.95580543752357 1.7063e-08 au
  Orbit Determination Parameters
   # obs. used (total)      462  
   data-arc span      6824 days (18.68 yr)  
   first obs. used      2001-07-19  
   last obs. used      2020-03-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57782  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:10:59  

Additional Information
 Earth MOID = 1.12218 au 
 Jupiter MOID = 2.19613 au 
 T_jup = 3.421 
[ 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 16.0   n/a MPO422368  

109608 (2001 QL287)          Discovered 2001-Aug-17 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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