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117253 (2004 ST45)
Classification: Main-belt Asteroid          SPK-ID: 2117253
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .169987852912171 5.0856e-08  
a 2.698735630883973 2.0271e-08 au
q 2.239983355412433 1.4312e-07 au
i 11.4724809857902 4.7336e-06 deg
node 230.2704087583468 2.4876e-05 deg
peri 122.885551686152 2.7338e-05 deg
M 210.014926798552 1.3512e-05 deg
tp 2459675.159251253696
(2022-Apr-05.65925125)
6.4896e-05 TDB
period 1619.343347088392
4.43
1.8245e-05
4.995e-08
d
yr
n .222312334593702 2.5048e-09 deg/d
Q 3.157487906355513 2.3717e-08 au
  Orbit Determination Parameters
   # obs. used (total)      526  
   data-arc span      7594 days (20.79 yr)  
   first obs. used      1999-07-14  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51666  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 20:10:50  

Additional Information
 Earth MOID = 1.26013 au 
 Jupiter MOID = 2.4148 au 
 T_jup = 3.319 
[ 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 15.1   n/a MPO432677  

117253 (2004 ST45)          Discovered 2004-Sep-18 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 2004 ST45 = 1999 NE63 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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