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103166 (1999 XT227)
Classification: Main-belt Asteroid          SPK-ID: 2103166
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1871306733466518 5.4963e-08  
a 2.575085814247075 1.3572e-08 au
q 2.093208271901609 1.4545e-07 au
i .8322644456162253 4.4337e-06 deg
node 260.3827042624146 0.00034475 deg
peri 106.0082766228417 0.00034497 deg
M 108.9497377821373 1.0093e-05 deg
tp 2458743.717270785276
(2019-Sep-17.21727079)
4.3126e-05 TDB
period 1509.33619359533
4.13
1.1932e-05
3.267e-08
d
yr
n .2385154490613905 1.8856e-09 deg/d
Q 3.056963356592541 1.6112e-08 au
  Orbit Determination Parameters
   # obs. used (total)      529  
   data-arc span      9650 days (26.42 yr)  
   first obs. used      1994-08-10  
   last obs. used      2021-01-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52635  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 08:33:31  

Additional Information
 Earth MOID = 1.09037 au 
 Jupiter MOID = 2.40865 au 
 T_jup = 3.403 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.4   n/a MPO453484  

103166 (1999 XT227)          Discovered 1999-Dec-15 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1999 XT227 = 1994 PA37 = 1998 MY48 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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