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152708 (1998 SU81)
Classification: Main-belt Asteroid          SPK-ID: 2152708
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1673602341322757 4.886e-08  
a 2.205714528977173 1.2025e-08 au
q 1.836565628978591 1.1029e-07 au
i 2.510843801688784 6.3887e-06 deg
node 340.9331064359449 0.00012589 deg
peri 334.7347886946285 0.0001281 deg
M 315.8180553402211 2.7344e-05 deg
tp 2459347.346875132373
(2021-May-12.84687513)
9.15e-05 TDB
period 1196.526668410312
3.28
9.7845e-06
2.679e-08
d
yr
n .300870853533328 2.4603e-09 deg/d
Q 2.574863428975755 1.4037e-08 au
  Orbit Determination Parameters
   # obs. used (total)      321  
   data-arc span      7895 days (21.62 yr)  
   first obs. used      1998-09-16  
   last obs. used      2020-04-28  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5639  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 19:28:18  

Additional Information
 Earth MOID = .821354 au 
 Jupiter MOID = 2.69782 au 
 T_jup = 3.642 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457234.5 (2015-Jul-31.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1677594506527286 4.8951e-08  
q 1.835501736536146 1.105e-07 au
tp 2456953.365928213395
(2014-Oct-22.86592821)
8.2404e-05 TDB
node 340.9806972922191 0.00012573 deg
peri 334.5222329320407 0.00012792 deg
i 2.513271103395891 6.3904e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      321  
   data-arc span      7895 days (21.62 yr)  
   first obs. used      1998-09-16  
   last obs. used      2020-04-28  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5639  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 19:28:18  

Additional Information
 Jupiter MOID = 2.69782 au 
 T_jup = 3.642 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.396212775525705E-15 -5.387203326271718E-15 8.223692608084524E-13 -1.186585852900984E-14 2.683265736555039E-13 5.180356521180351E-16
q -5.387203326271718E-15 1.220947454736563E-14 -1.527884118520608E-12 2.306838658908813E-14 -5.098884132741715E-13 -1.145754339748207E-15
tp 8.223692608084524E-13 -1.527884118520608E-12 6.790342735764768E-9 -7.819155638690628E-11 1.972555841102543E-9 -3.078769662695531E-12
node -1.186585852900984E-14 2.306838658908813E-14 -7.819155638690628E-11 1.580789268610026E-8 -1.581319942607637E-8 2.789195494688457E-10
peri 2.683265736555039E-13 -5.098884132741715E-13 1.972555841102543E-9 -1.581319942607637E-8 1.636342544740979E-8 -2.794551453110051E-10
i 5.180356521180351E-16 -1.145754339748207E-15 -3.078769662695531E-12 2.789195494688457E-10 -2.794551453110051E-10 4.083672526077391E-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 16.91   n/a E2021B55  

152708 (1998 SU81)          Discovered 1998-Sep-26 by LINEAR at Socorro
Reference: 20070402/Numbers.arcLast Updated: 2007-04-04

Alternate Designations
 1998 SU81 = 2000 CT100 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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