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74596 (1999 QQ)
Classification: Main-belt Asteroid          SPK-ID: 2074596
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2178229857136665 2.95e-08  
a 2.347790347353942 8.1381e-09 au
q 1.83638764406358 7.0632e-08 au
i .2335907341085336 4.7684e-06 deg
node 347.2528581416689 0.00079836 deg
peri 303.5765325531681 0.00079845 deg
M 306.2025972742371 1.0595e-05 deg
tp 2459196.856916794040
(2020-Dec-13.35691679)
3.88e-05 TDB
period 1313.97588850516
3.60
6.8319e-06
1.87e-08
d
yr
n .2739776301447607 1.4245e-09 deg/d
Q 2.859193050644303 9.9108e-09 au
  Orbit Determination Parameters
   # obs. used (total)      753  
   data-arc span      9603 days (26.29 yr)  
   first obs. used      1994-01-11  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53969  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 14:06:54  

Additional Information
 Earth MOID = .820148 au 
 Jupiter MOID = 2.3276 au 
 T_jup = 3.527 
[ 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 16.3   n/a MPO266274  
diameter diameter 1.354 km 0.238 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.291   0.190 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74596 (1999 QQ)          Discovered 1999-Aug-20 by Klet at Klet
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 QQ = 2002 GP180 = 2002 GR43 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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