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264290 (1998 SD27)
Classification: Main-belt Asteroid          SPK-ID: 2264290
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2483525793428948 1.1359e-07  
a 2.42983259135474 2.2792e-08 au
q 1.82637739992036 2.8452e-07 au
i 1.849270554431898 8.46e-06 deg
node 215.0840122732484 0.00038306 deg
peri 159.1379683649363 0.00038436 deg
M 252.9128240170947 2.7861e-05 deg
tp 2458012.026608793896
(2017-Sep-15.52660879)
0.00011076 JED
period 1383.448370974432
3.79
1.9465e-05
5.329e-08
d
yr
n .2602193240839439 3.6613e-09 deg/d
Q 3.033287782789119 2.8452e-08 au
  Orbit Determination Parameters
   # obs. used (total)      168  
   data-arc span      6024 days (16.49 yr)  
   first obs. used      1998-09-20  
   last obs. used      2015-03-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5279  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Apr-08 00:20:18  

Additional Information
 Earth MOID = .826151 au 
 Jupiter MOID = 2.42739 au 
 T_jup = 3.465 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.1 mag n/a MPO334510  

264290 (1998 SD27)          Discovered 1998-Sep-20 by Beijing Schmidt CCD Asteroid Program at Xinglong
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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