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100345 (1995 ST61)
Classification: Main-belt Asteroid          SPK-ID: 2100345
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .218658978672137 4.7184e-08  
a 2.233314228955969 6.6977e-09 au
q 1.744980020598506 1.0488e-07 au
i 5.634278643458964 5.4822e-06 deg
node 163.7660510252263 3.8308e-05 deg
peri 204.090565076141 4.0671e-05 deg
M 131.5009520208338 1.2801e-05 deg
tp 2458555.203201786023
(2019-Mar-12.70320179)
4.2454e-05 TDB
period 1219.054652407644
3.34
5.4839e-06
1.501e-08
d
yr
n .295310796188667 1.3285e-09 deg/d
Q 2.721648437313433 8.1623e-09 au
  Orbit Determination Parameters
   # obs. used (total)      621  
   data-arc span      8959 days (24.53 yr)  
   first obs. used      1995-07-26  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53511  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 01:04:52  

Additional Information
 Earth MOID = .745268 au 
 Jupiter MOID = 2.73992 au 
 T_jup = 3.602 
[ 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 16.4   n/a MPO453457  

100345 (1995 ST61)          Discovered 1995-Sep-25 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1995 ST61 = 2002 TF261 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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