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11979 (1995 SS5)
Classification: Main-belt Asteroid          SPK-ID: 2011979
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1693981433198283 4.9163e-08  
a 2.559278478675493 1.0702e-08 au
q 2.12574145614947 1.2906e-07 au
i 13.37467659464346 4.6974e-06 deg
node 207.4906702420747 2.1118e-05 deg
peri 91.60949942501558 2.759e-05 deg
M 80.29772919218748 1.4969e-05 deg
tp 2458666.938815986279
(2019-Jul-02.43881599)
6.2889e-05 TDB
period 1495.459802574627
4.09
9.3805e-06
2.568e-08
d
yr
n .2407286370253573 1.51e-09 deg/d
Q 2.992815501201516 1.2515e-08 au
  Orbit Determination Parameters
   # obs. used (total)      990  
   data-arc span      10212 days (27.96 yr)  
   first obs. used      1991-11-13  
   last obs. used      2019-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4737  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 03:34:24  

Additional Information
 Earth MOID = 1.16157 au 
 Jupiter MOID = 2.32453 au 
 T_jup = 3.378 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456627.5 (2013-Dec-01.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1694182326327912 4.9295e-08  
q 2.125514558618225 1.296e-07 au
tp 2457173.241693202302
(2015-May-30.74169320)
6.6886e-05 TDB
node 207.5185299292132 2.1104e-05 deg
peri 92.01824709587054 2.7557e-05 deg
i 13.37890164083568 4.6999e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      990  
   data-arc span      10212 days (27.96 yr)  
   first obs. used      1991-11-13  
   last obs. used      2019-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4737  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 03:34:24  

Additional Information
 Jupiter MOID = 2.32453 au 
 T_jup = 3.378 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.429997235101192E-15 -6.374913609176777E-15 1.905124011592379E-12 2.27453477011008E-14 5.005625070496379E-13 -1.976077312580245E-14
q -6.374913609176777E-15 1.679673072487863E-14 -5.178895358246281E-12 -6.170718809047343E-14 -1.367303394316989E-12 5.271746229666333E-14
tp 1.905124011592379E-12 -5.178895358246281E-12 4.473686989217215E-9 3.393821987650858E-11 1.208879261560443E-9 -2.243422002457006E-11
node 2.27453477011008E-14 -6.170718809047343E-14 3.393821987650858E-11 4.453978819844945E-10 -4.242995046406029E-10 -4.067518573915433E-11
peri 5.005625070496379E-13 -1.367303394316989E-12 1.208879261560443E-9 -4.242995046406029E-10 7.59400929628524E-10 3.367132803958492E-11
i -1.976077312580245E-14 5.271746229666333E-14 -2.243422002457006E-11 -4.067518573915433E-11 3.367132803958492E-11 2.208897976953296E-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 15.2   n/a MPO492886  
diameter diameter 2.411 km 0.326 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.304   0.075 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

11979 (1995 SS5)          Discovered 1995-Sep-25 by Beijing Schmidt CCD Asteroid Program at Xinglong
Reference: 19991026/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1995 SS5 = 1995 UZ7 = 1998 HK99 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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