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JPL Small-Body Database Browser
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277255 (2005 SR2)
Classification: Main-belt Asteroid          SPK-ID: 2277255
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ 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 .03503686470716157 6.2413e-08  
a 2.309682682543519 1.0016e-08 au
q 2.228758642878767 1.4645e-07 au
i 4.852189261513018 6.5697e-06 deg
node 3.398419960106423 4.5855e-05 deg
peri 354.6442892344518 8.1776e-05 deg
M 319.5735333793891 6.4936e-05 deg
tp 2458744.476027897813
(2019-Sep-17.97602790)
0.00023113 TDB
period 1282.114772226641
3.51
8.3403e-06
2.283e-08
d
yr
n .2807860948164494 1.8265e-09 deg/d
Q 2.39060672220827 1.0367e-08 au
  Orbit Determination Parameters
   # obs. used (total)      349  
   data-arc span      15360 days (42.05 yr)  
   first obs. used      1977-10-07  
   last obs. used      2019-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49635  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 05:22:55  

Additional Information
 Earth MOID = 1.22322 au 
 Jupiter MOID = 2.72719 au 
 T_jup = 3.580 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.6   n/a MPO450166  

277255 (2005 SR2)          Discovered 2005-Sep-23 by CSS at Catalina
Reference: 20110517/Numbers.arcLast Updated: 2011-05-20

[ show close-approach data ]
Alternate Designations
 2005 SR2 = 2305 T-3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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