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JPL Small-Body Database Browser
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172099 (2002 ET127)
Classification: Main-belt Asteroid          SPK-ID: 2172099
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 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06486842873063796 7.2463e-08  
a 2.24113557487199 1.454e-08 au
q 2.095756631557709 1.5955e-07 au
i 1.633470329920851 7.0817e-06 deg
node 146.5620757935531 0.00022899 deg
peri 71.85630523895607 0.00023672 deg
M 103.679074006178 5.5556e-05 deg
tp 2458647.569468622076
(2019-Jun-13.06946862)
0.00019067 TDB
period 1225.464178899609
3.36
1.1926e-05
3.265e-08
d
yr
n .2937662366624684 2.8589e-09 deg/d
Q 2.386514518186271 1.5483e-08 au
  Orbit Determination Parameters
   # obs. used (total)      198  
   data-arc span      6815 days (18.66 yr)  
   first obs. used      2000-10-01  
   last obs. used      2019-05-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61353  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 16:43:47  

Additional Information
 Earth MOID = 1.08849 au 
 Jupiter MOID = 2.57758 au 
 T_jup = 3.631 
[ 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 17.6   n/a MPO427050  

172099 (2002 ET127)          Discovered 2002-Mar-12 by NEAT at Palomar
Reference: 20071224/Numbers.arcLast Updated: 2007-12-22

Alternate Designations
 2002 ET127 = 2004 XL158 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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