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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 ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04403142957467211 4.4083e-08  
a 3.151592947201486 2.7632e-08 au
q 3.01282380429875 1.4947e-07 au
i 10.57696195544803 5.8366e-06 deg
node 357.2313420241269 2.5277e-05 deg
peri 120.0866634414871 7.8662e-05 deg
M 337.7318248281943 7.2802e-05 deg
tp 2459126.908341980581
(2020-Oct-04.40834198)
0.00041344 TDB
period 2043.589237192044
5.60
2.6876e-05
7.358e-08
d
yr
n .1761606459107464 2.3168e-09 deg/d
Q 3.290362090104221 2.8849e-08 au
  Orbit Determination Parameters
   # obs. used (total)      599  
   data-arc span      7626 days (20.88 yr)  
   first obs. used      1999-03-10  
   last obs. used      2020-01-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57649  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 17:17:29  

Additional Information
 Earth MOID = 2.04397 au 
 Jupiter MOID = 1.73984 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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