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70521 (1999 TF109)
Classification: Main-belt Asteroid          SPK-ID: 2070521
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09967734072429538 4.1124e-08  
a 2.378403601074733 1.0297e-08 au
q 2.141330654950516 1.0239e-07 au
i 9.062470360674286 4.1134e-06 deg
node 226.2106377178383 2.3973e-05 deg
peri 44.78804116388132 3.3631e-05 deg
M 354.6581481774228 2.652e-05 deg
tp 2459220.379986891838
(2021-Jan-05.87998689)
9.8757e-05 TDB
period 1339.759229339488
3.67
8.7009e-06
2.382e-08
d
yr
n .2687049972236301 1.7451e-09 deg/d
Q 2.615476547198951 1.1324e-08 au
  Orbit Determination Parameters
   # obs. used (total)      854  
   data-arc span      10580 days (28.97 yr)  
   first obs. used      1991-06-06  
   last obs. used      2020-05-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52264  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 12:50:13  

Additional Information
 Earth MOID = 1.13431 au 
 Jupiter MOID = 2.45028 au 
 T_jup = 3.516 
[ show covariance matrix ]

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 15.7   n/a MPO468645  
diameter diameter 2.766 km 0.129 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.146   0.023 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

70521 (1999 TF109)          Discovered 1999-Oct-04 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2157-May-17 05:39 < 00:01 Eunom 0.0395425029793891 0.0395320338822988 0.0395529843404224 6.02277923965414 6.02277918071106 2509024.735393336 0.672609189111447 1219.47753618758 46.981170930782 -64.7420425791885 113838.425587353 T 23 CATAB v2.0f-lin.ifort 2021-Apr-13 12:50:17 2021-Apr-13 12:50

Alternate Designations
 1999 TF109 = 2002 JB34 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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