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161546 Schneeweis (2004 XT16)
Classification: Main-belt Asteroid          SPK-ID: 2161546
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03807221935344815 9.4715e-08  
a 2.604552414101073 5.0874e-08 au
q 2.505391323273864 2.4434e-07 au
i 5.228707756940713 1.0586e-05 deg
node 75.81790713990186 9.9194e-05 deg
peri 149.6001347501813 0.00016987 deg
M 133.2969687674729 0.00014202 deg
tp 2457032.019133650501
(2015-Jan-09.51913365)
0.00060687 JED
period 1535.317072684694
4.20
4.4984e-05
1.232e-07
d
yr
n .2344792527907574 6.87e-09 deg/d
Q 2.703713504928282 5.2811e-08 au
  Orbit Determination Parameters
   # obs. used (total)      187  
   data-arc span      4798 days (13.14 yr)  
   first obs. used      2000-12-30  
   last obs. used      2014-02-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .6279  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-11 10:49:25  

Additional Information
 Earth MOID = 1.49614 au 
 Jupiter MOID = 2.27002 au 
 T_jup = 3.406 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.0 mag n/a MPO245200  

161546 Schneeweis           Discovered 2004 Dec. 10 by D. Healy at Junk Bond Observatory.
Scott Schneeweis (b. 1962), a U.S. Navy Lt. Commander currently stationed at Fr. Huachuca, Arizona, is a rich source of history and artifacts of the early days of the U.S. space program, notably through his "Spaceaholic" website.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20081113/MPCPages.arcLast Updated: 2008-11-17
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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