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JPL Small-Body Database Browser
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97021 (1999 TJ279)
Classification: Main-belt Asteroid          SPK-ID: 2097021
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0371049757878777 5.9055e-08  
a 2.655956381574047 1.9485e-08 au
q 2.557407184342082 1.5719e-07 au
i 14.13265917449203 5.3481e-06 deg
node 281.9217853425544 2.4564e-05 deg
peri 268.4329682921485 7.7384e-05 deg
M 115.3972790045233 7.4917e-05 deg
tp 2458493.715991598019
(2019-Jan-10.21599160)
0.00032854 TDB
period 1580.992590107448
4.33
1.7398e-05
4.763e-08
d
yr
n .2277050520366661 2.5057e-09 deg/d
Q 2.754505578806011 2.0208e-08 au
  Orbit Determination Parameters
   # obs. used (total)      731  
   data-arc span      7153 days (19.58 yr)  
   first obs. used      1999-10-07  
   last obs. used      2019-05-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56592  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 06:12:59  

Additional Information
 Earth MOID = 1.59902 au 
 Jupiter MOID = 2.40182 au 
 T_jup = 3.344 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.5   n/a MPO436447  
diameter diameter 3.138 km 0.379 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.342   0.201 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

97021 (1999 TJ279)          Discovered 1999-Oct-07 by LINEAR at Socorro
Reference: 20050224/Numbers.arcLast Updated: 2005-02-28

Alternate Designations
 1999 TJ279 = 2001 BQ42 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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