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JPL Small-Body Database Browser
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442299 (2011 SR45)
Classification: Main-belt Asteroid          SPK-ID: 2442299
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1186235041196398 8.2162e-08  
a 2.536182165105298 3.8572e-08 au
q 2.235331349594773 2.2063e-07 au
i 3.023648040108465 7.6554e-06 deg
node 257.4035059498513 0.00041239 deg
peri 20.49868531714902 0.00053053 deg
M 21.58477520092913 0.00038266 deg
tp 2458512.046683254474
(2019-Jan-28.54668325)
0.0015693 TDB
period 1475.261786697629
4.04
3.3655e-05
9.214e-08
d
yr
n .2440244865325627 5.567e-09 deg/d
Q 2.837032980615823 4.3148e-08 au
  Orbit Determination Parameters
   # obs. used (total)      67  
   data-arc span      5852 days (16.02 yr)  
   first obs. used      2003-09-18  
   last obs. used      2019-09-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60249  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 16:00:21  

Additional Information
 Earth MOID = 1.21867 au 
 Jupiter MOID = 2.26646 au 
 T_jup = 3.436 
[ 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 17.8   n/a MPO450446  

442299 (2011 SR45)          Discovered 2010-Apr-05 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02

Alternate Designations
 2011 SR45 = 2010 GQ100 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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