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277970 (2006 SR391)
Classification: Main-belt Asteroid          SPK-ID: 2277970
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1382535251223324 1.1707e-07  
a 2.572924167398389 2.7469e-08 au
q 2.21720833138312 3.1725e-07 au
i 4.016695955637451 9.073e-06 deg
node 191.5000784116304 7.7969e-05 deg
peri 149.6988293510474 8.1379e-05 deg
M 238.2502738092053 2.1934e-05 deg
tp 2459906.305361743885
(2022-Nov-22.80536174)
9.5145e-05 TDB
period 1507.436081952148
4.13
2.4141e-05
6.609e-08
d
yr
n .238816095959303 3.8245e-09 deg/d
Q 2.928640003413659 3.1267e-08 au
  Orbit Determination Parameters
   # obs. used (total)      133  
   data-arc span      8146 days (22.30 yr)  
   first obs. used      1998-12-26  
   last obs. used      2021-04-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58955  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 04:59:21  

Additional Information
 Earth MOID = 1.20933 au 
 Jupiter MOID = 2.46404 au 
 T_jup = 3.412 
[ 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 MPO455063  

277970 (2006 SR391)          Discovered 2006-Sep-18 by Spacewatch at Kitt Peak
Reference: 20110517/Numbers.arcLast Updated: 2011-05-20
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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