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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1818006643056651 6.7387e-08  
a 3.177882844996544 3.1463e-08 au
q 2.600141632690595 2.1054e-07 au
i 15.00222860676571 8.6287e-06 deg
node 347.1123089522408 2.4043e-05 deg
peri 69.84847852881552 3.2356e-05 deg
M 216.7713291266231 2.0573e-05 deg
tp 2459823.751843256349
(2022-Sep-01.25184326)
0.00012247 TDB
period 2069.21325014805
5.67
3.073e-05
8.413e-08
d
yr
n .1739791681569033 2.5837e-09 deg/d
Q 3.755624057302493 3.7183e-08 au
  Orbit Determination Parameters
   # obs. used (total)      443  
   data-arc span      9420 days (25.79 yr)  
   first obs. used      1993-08-15  
   last obs. used      2019-05-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58803  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:42:24  

Additional Information
 Earth MOID = 1.65594 au 
 Jupiter MOID = 1.91989 au 
 T_jup = 3.122 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456976.5 (2014-Nov-15.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1848384134934762 6.6961e-08  
q 2.58656818985735 2.0836e-07 au
tp 2457757.985099694557
(2017-Jan-04.48509969)
0.00011243 TDB
node 347.2376405306126 2.4035e-05 deg
peri 69.86119682902165 3.2059e-05 deg
i 15.01378793948976 8.6367e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      443  
   data-arc span      9420 days (25.79 yr)  
   first obs. used      1993-08-15  
   last obs. used      2019-05-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58803  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:42:24  

Additional Information
 Jupiter MOID = 1.91989 au 
 T_jup = 3.122 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.483756180899145E-15 -1.384466530397434E-14 -3.251067066322705E-12 1.471975262517678E-14 -7.266625057335441E-13 -4.37157230012998E-15
q -1.384466530397434E-14 4.341298187845215E-14 1.058190883628554E-11 -5.027850571628732E-14 2.285343244791355E-12 1.343742593963224E-14
tp -3.251067066322705E-12 1.058190883628554E-11 1.264057084805342E-8 -1.699259116548181E-11 2.404522473634493E-9 3.994256858617622E-12
node 1.471975262517678E-14 -5.027850571628732E-14 -1.699259116548181E-11 5.776975974961375E-10 -5.611364995573258E-10 7.053920205096212E-11
peri -7.266625057335441E-13 2.285343244791355E-12 2.404522473634493E-9 -5.611364995573258E-10 1.027789690570871E-9 -6.7420481130895E-11
i -4.37157230012998E-15 1.343742593963224E-14 3.994256858617622E-12 7.053920205096212E-11 -6.7420481130895E-11 7.459247118042669E-11

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 14.8   n/a MPO344925  

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

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