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277326 (2005 SR249)
Classification: Main-belt Asteroid          SPK-ID: 2277326
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1744783213828875 9.4611e-08  
a 2.282471346053622 1.2827e-08 au
q 1.884229576989646 2.0975e-07 au
i 6.181015861331139 8.5844e-06 deg
node 19.1579312027948 3.8764e-05 deg
peri 336.4087748605626 4.1976e-05 deg
M 333.7605653077942 1.5919e-05 deg
tp 2458692.303322994780
(2019-Jul-27.80332299)
5.6068e-05 TDB
period 1259.523944238701
3.45
1.0617e-05
2.907e-08
d
yr
n .2858222756674912 2.4094e-09 deg/d
Q 2.680713115117598 1.5065e-08 au
  Orbit Determination Parameters
   # obs. used (total)      345  
   data-arc span      5718 days (15.66 yr)  
   first obs. used      2004-03-29  
   last obs. used      2019-11-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49591  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 17:52:29  

Additional Information
 Earth MOID = .881136 au 
 Jupiter MOID = 2.75893 au 
 T_jup = 3.576 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457253.5 (2015-Aug-19.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1757732894269464 9.4878e-08  
q 1.881183916214431 2.1076e-07 au
tp 2457432.330505148832
(2016-Feb-13.83050515)
5.1218e-05 TDB
node 19.1880842599533 3.8717e-05 deg
peri 336.3260967066987 4.1869e-05 deg
i 6.186437173649992 8.5895e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      345  
   data-arc span      5718 days (15.66 yr)  
   first obs. used      2004-03-29  
   last obs. used      2019-11-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49591  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 17:52:29  

Additional Information
 Jupiter MOID = 2.75893 au 
 T_jup = 3.576 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.001918801272688E-15 -1.99802587846519E-14 2.115155677314116E-12 3.488983918620527E-14 3.311110885865399E-13 -6.962341510392104E-15
q -1.99802587846519E-14 4.44182432343499E-14 -4.659381896710553E-12 -7.764406491086684E-14 -7.25406227035349E-13 1.568463211749231E-14
tp 2.115155677314116E-12 -4.659381896710553E-12 2.623236703665046E-9 1.360547753935067E-11 8.007898469554171E-10 -7.56533294094973E-12
node 3.488983918620527E-14 -7.764406491086684E-14 1.360547753935067E-11 1.499009685102111E-9 -1.486402546102242E-9 -4.134717556077652E-14
peri 3.311110885865399E-13 -7.25406227035349E-13 8.007898469554171E-10 -1.486402546102242E-9 1.753000509578827E-9 -2.344476446926028E-12
i -6.962341510392104E-15 1.568463211749231E-14 -7.56533294094973E-12 -4.134717556077652E-14 -2.344476446926028E-12 7.377870315417598E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.0   n/a MPO503247  

277326 (2005 SR249)          Discovered 2005-Sep-23 by LONEOS at Anderson Mesa
Reference: 20110517/Numbers.arcLast Updated: 2011-05-20
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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