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70491 (1999 TH58)
Classification: Main-belt Asteroid          SPK-ID: 2070491
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2494339529441854 4.049e-08  
a 2.708295168918911 1.5125e-08 au
q 2.032754399195826 1.1062e-07 au
i 2.523256113633455 5.2721e-06 deg
node 160.2236017183828 0.00010606 deg
peri 96.14354155009646 0.00010659 deg
M .4341160303551294 1.2903e-05 deg
tp 2458998.536884998812
(2020-May-29.03688500)
5.8341e-05 TDB
period 1627.955088066306
4.46
1.3638e-05
3.734e-08
d
yr
n .2211363216583634 1.8525e-09 deg/d
Q 3.383835938641995 1.8898e-08 au
  Orbit Determination Parameters
   # obs. used (total)      581  
   data-arc span      9394 days (25.72 yr)  
   first obs. used      1994-09-28  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57478  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 23:35:50  

Additional Information
 Earth MOID = 1.01976 au 
 Jupiter MOID = 1.68624 au 
 T_jup = 3.317 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456860.5 (2014-Jul-22.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2490326318286766 4.0666e-08  
q 2.036057870186036 1.1124e-07 au
tp 2457368.697077117015
(2015-Dec-12.19707712)
5.2078e-05 TDB
node 160.2759549277638 0.00010628 deg
peri 95.68704741445062 0.00010679 deg
i 2.519152357546293 5.2658e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      581  
   data-arc span      9394 days (25.72 yr)  
   first obs. used      1994-09-28  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57478  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 23:35:50  

Additional Information
 Jupiter MOID = 1.68624 au 
 T_jup = 3.317 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.653695909300003E-15 -4.498518058437308E-15 -5.033399666677359E-13 -8.862846935256637E-16 -6.943980042222514E-14 -3.751421700010149E-16
q -4.498518058437308E-15 1.237408097423259E-14 1.590756471500812E-12 -2.930243209558409E-15 2.250284048551076E-13 6.272222309931226E-16
tp -5.033399666677359E-13 1.590756471500812E-12 2.71211316109254E-9 4.426190620469503E-12 5.665796321615347E-10 6.822802073548364E-13
node -8.862846935256637E-16 -2.930243209558409E-15 4.426190620469503E-12 1.129456602659731E-8 -1.128196935793223E-8 8.89320392959403E-11
peri -6.943980042222514E-14 2.250284048551076E-13 5.665796321615347E-10 -1.128196935793223E-8 1.140482896063582E-8 -8.870335977342688E-11
i -3.751421700010149E-16 6.272222309931226E-16 6.822802073548364E-13 8.89320392959403E-11 -8.870335977342688E-11 2.772903480034257E-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 15.6   n/a MPO432257  
diameter diameter 4.151 km 1.097 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.065   0.042 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

70491 (1999 TH58)          Discovered 1999-Oct-06 by Spacewatch at Kitt Peak
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 TH58 = 1994 SG10 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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