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79534 (1998 QQ21)
Classification: Main-belt Asteroid          SPK-ID: 2079534
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2233240847301875 4.4348e-08  
a 2.334135835174088 8.6515e-09 au
q 1.812867086147903 1.0325e-07 au
i 2.893512385776 4.8256e-06 deg
node 3.860188279944633 8.1712e-05 deg
peri 345.6620290551334 8.2238e-05 deg
M 135.0558573214744 1.1405e-05 deg
tp 2458907.849283866890
(2020-Feb-28.34928387)
4.0032e-05 TDB
period 1302.529644376621
3.57
7.2418e-06
1.983e-08
d
yr
n .2763852642849391 1.5366e-09 deg/d
Q 2.855404584200273 1.0584e-08 au
  Orbit Determination Parameters
   # obs. used (total)      523  
   data-arc span      10686 days (29.26 yr)  
   first obs. used      1991-10-06  
   last obs. used      2021-01-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55739  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 13:42:21  

Additional Information
 Earth MOID = .806095 au 
 Jupiter MOID = 2.57319 au 
 T_jup = 3.533 
[ 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 16.34   n/a MPCxxxxx  

79534 (1998 QQ21)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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