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JPL Small-Body Database Browser
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172444 (2003 QN55)
Classification: Main-belt Asteroid          SPK-ID: 2172444
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2240329692958844 4.838e-08  
a 2.355963126640317 1.0728e-08 au
q 1.828149711827471 1.132e-07 au
i 3.227649798368065 5.0884e-06 deg
node 72.50039900946265 9.6267e-05 deg
peri 273.3891231277375 9.7141e-05 deg
M 223.8689746347209 1.3435e-05 deg
tp 2459499.965822133166
(2021-Oct-12.46582213)
5.1142e-05 TDB
period 1320.842882696751
3.62
9.0216e-06
2.47e-08
d
yr
n .2725532345414102 1.8616e-09 deg/d
Q 2.883776541453164 1.3131e-08 au
  Orbit Determination Parameters
   # obs. used (total)      302  
   data-arc span      9135 days (25.01 yr)  
   first obs. used      1994-01-11  
   last obs. used      2019-01-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58075  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 12:12:30  

Additional Information
 Earth MOID = .824553 au 
 Jupiter MOID = 2.53767 au 
 T_jup = 3.518 
[ 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 16.7   n/a MPO412967  

172444 (2003 QN55)          Discovered 2003-Aug-23 by LINEAR at Socorro
Reference: 20071224/Numbers.arcLast Updated: 2007-12-22
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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