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134456 (1998 SH117)
Classification: Main-belt Asteroid          SPK-ID: 2134456
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ 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 .2706329690008372 6.1771e-08  
a 2.592313019566487 8.7669e-09 au
q 1.890747650501683 1.5878e-07 au
i 5.780208288513414 5.5457e-06 deg
node 228.2899312416928 3.2993e-05 deg
peri 179.3053955448532 3.4188e-05 deg
M 95.81931153023936 5.8478e-06 deg
tp 2458794.729814257671
(2019-Nov-07.22981426)
2.4939e-05 TDB
period 1524.50758134636
4.17
7.7335e-06
2.117e-08
d
yr
n .2361418233696602 1.1979e-09 deg/d
Q 3.29387838863129 1.1139e-08 au
  Orbit Determination Parameters
   # obs. used (total)      835  
   data-arc span      8259 days (22.61 yr)  
   first obs. used      1998-09-19  
   last obs. used      2021-04-30  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46054  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 09:19:56  

Additional Information
 Earth MOID = .899853 au 
 Jupiter MOID = 2.10628 au 
 T_jup = 3.359 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457833.5 (2017-Mar-21.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2684167347863549 6.1605e-08  
q 1.899417067504403 1.5786e-07 au
tp 2457266.360825931826
(2015-Aug-31.86082593)
2.8252e-05 TDB
node 228.3223412425036 3.3057e-05 deg
peri 178.9752219855672 3.4287e-05 deg
i 5.767672404058635 5.542e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      835  
   data-arc span      8259 days (22.61 yr)  
   first obs. used      1998-09-19  
   last obs. used      2021-04-30  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46054  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 09:19:56  

Additional Information
 Jupiter MOID = 2.10628 au 
 T_jup = 3.359 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.795143390783301E-15 -9.717416089599148E-15 -7.868459710772337E-13 3.254088586215051E-14 -3.50984840776703E-13 -5.549470690075782E-15
q -9.717416089599148E-15 2.492084247410598E-14 1.960949703599316E-12 -8.442249448750262E-14 8.903726921369632E-13 1.40446294517746E-14
tp -7.868459710772337E-13 1.960949703599316E-12 7.982010127524542E-10 -4.772615858081792E-12 2.568918872232514E-10 7.685459645225125E-13
node 3.254088586215051E-14 -8.442249448750262E-14 -4.772615858081792E-12 1.092747844391537E-9 -1.089053793847471E-9 -3.845919366085908E-11
peri -3.50984840776703E-13 8.903726921369632E-13 2.568918872232514E-10 -1.089053793847471E-9 1.175575843766258E-9 3.855167091522027E-11
i -5.549470690075782E-15 1.40446294517746E-14 7.685459645225125E-13 -3.845919366085908E-11 3.855167091522027E-11 3.071347939190387E-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 15.38   n/a E2021B55  

134456 (1998 SH117)          Discovered 1998-Sep-26 by LINEAR at Socorro
Reference: 20060907/Numbers.arcLast Updated: 2006-09-10

Alternate Designations
 1998 SH117 = 2002 PJ117 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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