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117261 (2004 SS57)
Classification: Main-belt Asteroid          SPK-ID: 2117261
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1304435683716056 4.6462e-08  
a 3.103375677071445 2.0161e-08 au
q 2.698560279756598 1.5031e-07 au
i 16.05986073236364 5.484e-06 deg
node 214.2541804810995 1.467e-05 deg
peri 191.6808215614475 2.5032e-05 deg
M 337.4269924939479 1.8542e-05 deg
tp 2459325.709384334459
(2021-Apr-21.20938433)
0.00010286 TDB
period 1996.870746989299
5.47
1.9459e-05
5.328e-08
d
yr
n .1802820741115946 1.7568e-09 deg/d
Q 3.508191074386292 2.2791e-08 au
  Orbit Determination Parameters
   # obs. used (total)      903  
   data-arc span      9950 days (27.24 yr)  
   first obs. used      1993-10-09  
   last obs. used      2021-01-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48672  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 09:16:16  

Additional Information
 Earth MOID = 1.70809 au 
 Jupiter MOID = 1.91705 au 
 T_jup = 3.148 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457680.5 (2016-Oct-19.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1327592692462861 4.7415e-08  
q 2.690272384883064 1.538e-07 au
tp 2457311.134940601557
(2015-Oct-15.63494060)
9.8396e-05 TDB
node 214.4534845860013 1.4605e-05 deg
peri 188.9389426633509 2.4473e-05 deg
i 16.10666523942868 5.504e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      903  
   data-arc span      9950 days (27.24 yr)  
   first obs. used      1993-10-09  
   last obs. used      2021-01-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48672  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 09:16:16  

Additional Information
 Jupiter MOID = 1.91705 au 
 T_jup = 3.148 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.248221435455647E-15 -7.251151390523632E-15 -1.108083207355889E-12 -1.128633576798226E-14 -1.537773646964922E-13 -2.935703232839094E-15
q -7.251151390523632E-15 2.365308497105005E-14 3.309865263116665E-12 3.611946159183096E-14 4.546186560686357E-13 1.083061155995621E-14
tp -1.108083207355889E-12 3.309865263116665E-12 9.68179741968691E-9 5.061544936197621E-12 1.944828633001792E-9 1.060394793306417E-11
node -1.128633576798226E-14 3.611946159183096E-14 5.061544936197621E-12 2.133173319159885E-10 -2.034935494439977E-10 -2.69892788454284E-11
peri -1.537773646964922E-13 4.546186560686357E-13 1.944828633001792E-9 -2.034935494439977E-10 5.989126101165271E-10 2.794491743644321E-11
i -2.935703232839094E-15 1.083061155995621E-14 1.060394793306417E-11 -2.69892788454284E-11 2.794491743644321E-11 3.02943924429079E-11

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 14.80   n/a E2021B55  

117261 (2004 SS57)          Discovered 2004-Sep-16 by LONEOS at Anderson Mesa
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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