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JPL Small-Body Database Browser
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442295 (2011 SY25)
Classification: Main-belt Asteroid          SPK-ID: 2442295
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1276443888818405 8.4634e-08  
a 2.473510102767651 2.9456e-08 au
q 2.157780417306816 1.9841e-07 au
i 5.881297622974521 1.021e-05 deg
node 355.9834799757525 6.6746e-05 deg
peri 316.0424344868901 8.0727e-05 deg
M 23.36685466726861 5.0869e-05 deg
tp 2458508.271166381510
(2019-Jan-24.77116638)
0.0001998 TDB
period 1420.917816087803
3.89
2.5382e-05
6.949e-08
d
yr
n .2533573693876145 4.5257e-09 deg/d
Q 2.789239788228486 3.3216e-08 au
  Orbit Determination Parameters
   # obs. used (total)      140  
   data-arc span      6434 days (17.62 yr)  
   first obs. used      2002-03-20  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64105  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 16:00:21  

Additional Information
 Earth MOID = 1.14771 au 
 Jupiter MOID = 2.47703 au 
 T_jup = 3.464 
[ 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 17.3   n/a MPO349188  

442295 (2011 SY25)          Discovered 2003-Oct-01 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02

Alternate Designations
 2011 SY25 = 2007 RW104 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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