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101246 (1998 SS87)
Classification: Main-belt Asteroid          SPK-ID: 2101246
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1752472861942853 4.6543e-08  
a 2.341957760433653 1.1274e-08 au
q 1.931536018536009 1.077e-07 au
i 1.730611963622427 4.5101e-06 deg
node 283.7549467899951 0.00017674 deg
peri 117.1399058105699 0.00017734 deg
M 353.0777226530178 1.366e-05 deg
tp 2459025.671755726978
(2020-Jun-25.17175573)
4.971e-05 TDB
period 1309.082489401071
3.58
9.4527e-06
2.588e-08
d
yr
n .2750017687309427 1.9857e-09 deg/d
Q 2.752379502331297 1.325e-08 au
  Orbit Determination Parameters
   # obs. used (total)      443  
   data-arc span      8096 days (22.17 yr)  
   first obs. used      1998-09-15  
   last obs. used      2020-11-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58947  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 22:28:58  

Additional Information
 Earth MOID = .940513 au 
 Jupiter MOID = 2.65274 au 
 T_jup = 3.542 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456909.5 (2014-Sep-09.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1766136339636497 4.6847e-08  
q 1.927966277536988 1.0855e-07 au
tp 2456405.736298193999
(2013-Apr-23.23629819)
4.8267e-05 TDB
node 283.8939750513903 0.00017722 deg
peri 116.6341146803072 0.0001778 deg
i 1.728038553210195 4.5062e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      443  
   data-arc span      8096 days (22.17 yr)  
   first obs. used      1998-09-15  
   last obs. used      2020-11-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58947  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 22:28:58  

Additional Information
 Jupiter MOID = 2.65274 au 
 T_jup = 3.542 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.194671636762307E-15 -5.067430751142094E-15 -4.672620929893485E-13 -1.111650986930007E-14 -1.477202861602932E-13 -1.673052616922899E-15
q -5.067430751142094E-15 1.178367321439764E-14 1.022232032844135E-12 2.411937447512925E-14 3.327875944825921E-13 3.882232794039429E-15
tp -4.672620929893485E-13 1.022232032844135E-12 2.329740622417916E-9 2.101838950498048E-12 7.198890163254304E-10 3.557530143365068E-13
node -1.111650986930007E-14 2.411937447512925E-14 2.101838950498048E-12 3.140565905072934E-8 -3.138987656593248E-8 -1.243462064163604E-11
peri -1.477202861602932E-13 3.327875944825921E-13 7.198890163254304E-10 -3.138987656593248E-8 3.161148322689897E-8 1.255729145086598E-11
i -1.673052616922899E-15 3.882232794039429E-15 3.557530143365068E-13 -1.243462064163604E-11 1.255729145086598E-11 2.030558687378872E-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 16.5   n/a MPO436472  
diameter diameter 3.039 km 0.062 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.048   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

101246 (1998 SS87)          Discovered 1998-Sep-26 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1998 SS87 = 2002 YZ24 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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