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90749 (1993 QZ7)
Classification: Main-belt Asteroid          SPK-ID: 2090749
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1792870601850637 5.7514e-08  
a 3.183680778370953 2.9744e-08 au
q 2.612888011049129 1.8507e-07 au
i 15.03115853747986 8.1817e-06 deg
node 346.9480686314211 2.1585e-05 deg
peri 69.56510665102388 3.0056e-05 deg
M 285.8266247710291 2.1172e-05 deg
tp 2459824.002088747303
(2022-Sep-01.50208875)
0.00012448 TDB
period 2074.878640400847
5.68
2.9078e-05
7.961e-08
d
yr
n .1735041235618732 2.4315e-09 deg/d
Q 3.754473545692776 3.5077e-08 au
  Orbit Determination Parameters
   # obs. used (total)      458  
   data-arc span      10219 days (27.98 yr)  
   first obs. used      1993-08-15  
   last obs. used      2021-08-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58407  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 02:01:07  

Additional Information
 Earth MOID = 1.66791 au 
 Jupiter MOID = 1.91862 au 
 T_jup = 3.121 
[ 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 14.81   n/a MPO637234  

90749 (1993 QZ7)          Discovered 1993-Aug-20 by Elst, E. W. at La Silla
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

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Alternate Designations
 1993 QZ7 = 1999 TW187 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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