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85244 (1993 QB9)
Classification: Main-belt Asteroid          SPK-ID: 2085244
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0700396443017306 3.8343e-08  
a 2.414443978701697 1.1566e-08 au
q 2.245337181246975 9.1604e-08 au
i 6.570641816526699 4.8541e-06 deg
node 357.746980304555 3.4807e-05 deg
peri 214.5510794665154 5.0642e-05 deg
M 278.1063885064436 3.9029e-05 deg
tp 2459708.225011481796
(2022-May-08.72501148)
0.00014931 TDB
period 1370.3267213008
3.75
9.8464e-06
2.696e-08
d
yr
n .2627110705819599 1.8877e-09 deg/d
Q 2.583550776156419 1.2376e-08 au
  Orbit Determination Parameters
   # obs. used (total)      692  
   data-arc span      10018 days (27.43 yr)  
   first obs. used      1993-08-15  
   last obs. used      2021-01-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58425  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 14:12:03  

Additional Information
 Earth MOID = 1.24424 au 
 Jupiter MOID = 2.38626 au 
 T_jup = 3.505 
[ 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 15.87   n/a MPCxxxxx  

85244 (1993 QB9)          Discovered 1993-Aug-20 by Elst, E. W. at La Silla
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

Alternate Designations
 1993 QB9 = 2001 VZ56 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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