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JPL Small-Body Database Browser
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173274 (1999 SS7)
Classification: Mars-crossing Asteroid          SPK-ID: 2173274
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3152849878813907 3.8113e-08  
a 2.263753622138657 8.9415e-09 au
q 1.550026088816216 8.8179e-08 au
i 7.055468917005657 3.9806e-06 deg
node 41.47066925822427 3.783e-05 deg
peri 253.4349007905756 3.8251e-05 deg
M 298.4873600372073 6.1697e-06 deg
tp 2458813.071006874929
(2019-Nov-25.57100688)
2.1616e-05 TDB
period 1244.062399553373
3.41
7.3708e-06
2.018e-08
d
yr
n .2893745523771497 1.7145e-09 deg/d
Q 2.977481155461097 1.1761e-08 au
  Orbit Determination Parameters
   # obs. used (total)      643  
   data-arc span      7182 days (19.66 yr)  
   first obs. used      1999-09-11  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55974  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 07:41:55  

Additional Information
 Earth MOID = .55317 au 
 Jupiter MOID = 2.281 au 
 T_jup = 3.541 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457006.5 (2014-Dec-15.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3150004048246245 3.8139e-08  
q 1.551835605430384 8.8161e-08 au
tp 2457568.348146582901
(2016-Jun-28.84814658)
2.0992e-05 TDB
node 41.58247947818887 3.7855e-05 deg
peri 253.1827262052383 3.8274e-05 deg
i 7.051778647655857 3.9764e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      643  
   data-arc span      7182 days (19.66 yr)  
   first obs. used      1999-09-11  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55974  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 07:41:55  

Additional Information
 Jupiter MOID = 2.281 au 
 T_jup = 3.541 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.454560821334576E-15 -3.35477384279877E-15 2.955789919174877E-13 1.37423119277729E-14 9.377769774277026E-14 -8.212783868401975E-15
q -3.35477384279877E-15 7.77229082697219E-15 -6.764944508679742E-13 -2.812955146209846E-14 -2.243328285172052E-13 1.874969950672395E-14
tp 2.955789919174877E-13 -6.764944508679742E-13 4.406624711226768E-10 1.068601633263487E-11 1.36222212466625E-10 -3.449595178385552E-12
node 1.37423119277729E-14 -2.812955146209846E-14 1.068601633263487E-11 1.432991218910661E-9 -1.419405819768222E-9 -3.816391546491283E-11
peri 9.377769774277026E-14 -2.243328285172052E-13 1.36222212466625E-10 -1.419405819768222E-9 1.464906388007283E-9 3.672914063552724E-11
i -8.212783868401975E-15 1.874969950672395E-14 -3.449595178385552E-12 -3.816391546491283E-11 3.672914063552724E-11 1.581192355603632E-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 16.0   n/a MPO436860  

173274 (1999 SS7)          Discovered 1999-Sep-29 by LINEAR at Socorro
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28

Alternate Designations
 1999 SS7 = 2002 GT10 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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