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249718 (2000 QS254)
Classification: Main-belt Asteroid          SPK-ID: 2249718
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2041653562919441 5.4417e-08  
a 2.236675472590833 1.379e-08 au
q 1.780023827819873 1.1855e-07 au
i 7.408313999561926 4.7764e-06 deg
node 82.61051251567535 4.0133e-05 deg
peri 287.8968698791399 4.2046e-05 deg
M 314.3914802180162 1.9389e-05 deg
tp 2459155.291235456864
(2020-Nov-01.79123546)
6.6795e-05 TDB
period 1221.807790098096
3.35
1.1299e-05
3.093e-08
d
yr
n .2946453631393989 2.7249e-09 deg/d
Q 2.693327117361793 1.6605e-08 au
  Orbit Determination Parameters
   # obs. used (total)      369  
   data-arc span      6847 days (18.75 yr)  
   first obs. used      2000-08-28  
   last obs. used      2019-05-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57096  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 10:26:29  

Additional Information
 Earth MOID = .797213 au 
 Jupiter MOID = 2.79591 au 
 T_jup = 3.599 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.5   n/a MPO476004  

249718 (2000 QS254)          Discovered 2000-Aug-28 by LINEAR at Socorro
Reference: 20100923/Numbers.arcLast Updated: 2010-09-27
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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