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78391 Michaeljager (2002 PT163)
Classification: Main-belt Asteroid          SPK-ID: 2078391
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2319284398389551 7.7963e-08  
a 3.106193260570459 5.8133e-08 au
q 2.385778703808076 2.4919e-07 au
i 14.54222436985725 1.6413e-05 deg
node 319.6256597962284 3.7796e-05 deg
peri 94.82295812237938 5.2636e-05 deg
M 88.430323294869 3.3994e-05 deg
tp 2456909.320934497186
(2014-Sep-08.82093450)
0.0001865 JED
period 1999.590830301451
5.47
5.6134e-05
1.537e-07
d
yr
n .1800368328083039 5.0541e-09 deg/d
Q 3.826607817332842 7.1616e-08 au
  Orbit Determination Parameters
   # obs. used (total)      199  
   data-arc span      5757 days (15.76 yr)  
   first obs. used      1999-02-10  
   last obs. used      2014-11-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .65147  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Mar-09 17:41:45  

Additional Information
 Earth MOID = 1.44921 au 
 Jupiter MOID = 1.83177 au 
 T_jup = 3.130 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.8 mag n/a MPO266288  

78391 Michaeljäger           Discovered 2002 Aug. 8 by S. F. Hönig at Palomar.
Michael Jäger (b. 1958) is one of the most prolific and recognized comet astrophotographers. Within the last decades he imaged around 300 different comets and discovered comet P/1998 U3 as well as fragment D of comet 141P/Machholz. In 2002 he assisted the discoverer with confirmation of comet C/2002 O4 (Hönig).
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20040504/MPCPages.arcLast Updated: 2004-05-11

[ show close-approach data ]
Alternate Designations
 2002 PT163 = 1999 CP23 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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