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129807 Stefanodougherty (1999 KV17)
Classification: Main-belt Asteroid          SPK-ID: 2129807
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1691809463624729 4.3429e-08  
a 2.408336894274013 1.3416e-08 au
q 2.000892179341077 1.0372e-07 au
i 2.095817209978275 4.4428e-06 deg
node 181.4369581668404 0.00013411 deg
peri 92.23663158472688 0.0001348 deg
M 196.1750972865301 1.391e-05 deg
tp 2459621.728974237565
(2022-Feb-11.22897424)
5.486e-05 TDB
period 1365.130862410306
3.74
1.1407e-05
3.123e-08
d
yr
n .2637109817914276 2.2036e-09 deg/d
Q 2.81578160920695 1.5686e-08 au
  Orbit Determination Parameters
   # obs. used (total)      502  
   data-arc span      8517 days (23.32 yr)  
   first obs. used      1996-10-03  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59227  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 07:06:00  

Additional Information
 Earth MOID = .985944 au 
 Jupiter MOID = 2.29212 au 
 T_jup = 3.501 
[ 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 MPO453776  

129807 Stefanodougherty           Discovered 1999 May 17 by the Catalina Sky Survey.
Stefan O'Dougherty (b. 1998) worked as a calibration and test engineer on OSIRIS-REx Sample Return Mission OCAMS camera system.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2016-08-18Last Updated: 2016-08-22

[ show close-approach data ]
Alternate Designations
 1999 KV17 = 1996 TU2 = 1999 KB18 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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