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85499 (1997 TH13)
Classification: Main-belt Asteroid          SPK-ID: 2085499
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1936895928704701 5.4042e-08  
a 2.861208295429623 2.0484e-08 au
q 2.307022025570248 1.6139e-07 au
i 2.957181719621746 5.882e-06 deg
node 348.0459460680381 0.00010359 deg
peri 357.3223789946319 0.00010467 deg
M 248.5890047688374 1.8998e-05 deg
tp 2459547.576667995289
(2021-Nov-29.07666800)
9.6816e-05 TDB
period 1767.757303214685
4.84
1.8983e-05
5.197e-08
d
yr
n .2036478646391879 2.1869e-09 deg/d
Q 3.415394565288999 2.4451e-08 au
  Orbit Determination Parameters
   # obs. used (total)      393  
   data-arc span      9180 days (25.13 yr)  
   first obs. used      1995-03-10  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57117  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 15:37:21  

Additional Information
 Earth MOID = 1.29978 au 
 Jupiter MOID = 2.00082 au 
 T_jup = 3.272 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456781.5 (2014-May-04.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1917128778043075 5.403e-08  
q 2.315128503188774 1.6135e-07 au
tp 2456011.024235251524
(2012-Mar-24.52423525)
8.0427e-05 TDB
node 348.0722997779047 0.00010363 deg
peri 357.5669714580909 0.00010473 deg
i 2.955451403707112 5.8769e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      393  
   data-arc span      9180 days (25.13 yr)  
   first obs. used      1995-03-10  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57117  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 15:37:21  

Additional Information
 Jupiter MOID = 2.00082 au 
 T_jup = 3.272 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.919223821258663E-15 -8.677910245516895E-15 9.243381769539008E-13 -2.368103645239332E-15 1.328269373351056E-13 -1.143811208327384E-15
q -8.677910245516895E-15 2.603260077365928E-14 -2.311232491329746E-12 8.091130729435553E-15 -2.978601143160932E-13 3.814796156239833E-15
tp 9.243381769539008E-13 -2.311232491329746E-12 6.468452768196985E-9 9.393354655448109E-12 1.255080443217907E-9 -9.919426336204254E-13
node -2.368103645239332E-15 8.091130729435553E-15 9.393354655448109E-12 1.073937158649519E-8 -1.072243018253512E-8 1.585434122339953E-10
peri 1.328269373351056E-13 -2.978601143160932E-13 1.255080443217907E-9 -1.072243018253512E-8 1.096899865553431E-8 -1.5842293932801E-10
i -1.143811208327384E-15 3.814796156239833E-15 -9.919426336204254E-13 1.585434122339953E-10 -1.5842293932801E-10 3.453761075262082E-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 15.8   n/a MPO253865  

85499 (1997 TH13)          Discovered 1997-Oct-03 by Spacewatch at Kitt Peak
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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