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JPL Small-Body Database Browser
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74508 (1999 FQ2)
Classification: Main-belt Asteroid          SPK-ID: 2074508
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04402401275010653 4.46e-08  
a 3.150547906497571 2.7842e-08 au
q 3.011848145292101 1.5047e-07 au
i 10.57849779487539 6.0525e-06 deg
node 357.2451938139153 2.5296e-05 deg
peri 120.5693861633576 7.9216e-05 deg
M 266.7741389131974 7.3435e-05 deg
tp 2459129.446150979745
(2020-Oct-06.94615098)
0.0004175 TDB
period 2042.572866936647
5.59
2.7076e-05
7.413e-08
d
yr
n .1762483022404536 2.3363e-09 deg/d
Q 3.289247667703041 2.9068e-08 au
  Orbit Determination Parameters
   # obs. used (total)      583  
   data-arc span      7574 days (20.74 yr)  
   first obs. used      1999-03-10  
   last obs. used      2019-12-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5827  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 07:26:20  

Additional Information
 Earth MOID = 2.04312 au 
 Jupiter MOID = 1.74148 au 
 T_jup = 3.180 
[ 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 14.8   n/a MPO453158  
diameter diameter 4.415 km 1.206 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.109   0.037 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74508 (1999 FQ2)          Discovered 1999-Mar-16 by Spacewatch at Kitt Peak
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 FQ2 = 2002 VD101 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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