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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04403143092451165 4.4403e-08  
a 3.151592948183253 2.7874e-08 au
q 3.012823800983144 1.5006e-07 au
i 10.57696185508665 6.012e-06 deg
node 357.2313420605079 2.5289e-05 deg
peri 120.0866656802343 7.9176e-05 deg
M 337.7318223366236 7.3459e-05 deg
tp 2459126.908356183390
(2020-Oct-04.40835618)
0.0004172 TDB
period 2043.589238146956
5.60
2.7112e-05
7.423e-08
d
yr
n .1761606458284314 2.3371e-09 deg/d
Q 3.290362095383361 2.9102e-08 au
  Orbit Determination Parameters
   # obs. used (total)      591  
   data-arc span      7605 days (20.82 yr)  
   first obs. used      1999-03-10  
   last obs. used      2020-01-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57958  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 11:50:02  

Additional Information
 Earth MOID = 2.04397 au 
 Jupiter MOID = 1.73984 au 
 T_jup = 3.180 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457115.5 (2015-Apr-03.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04338321675641664 4.5875e-08  
q 3.01625953750351 1.5486e-07 au
tp 2457107.321318939255
(2015-Mar-25.82131894)
0.0004121 TDB
node 357.2790008372308 2.5305e-05 deg
peri 124.2972539783787 7.8578e-05 deg
i 10.57416457085696 6.0067e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      591  
   data-arc span      7605 days (20.82 yr)  
   first obs. used      1999-03-10  
   last obs. used      2020-01-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57958  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 11:50:02  

Additional Information
 Jupiter MOID = 1.73984 au 
 T_jup = 3.180 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.104481875715488E-15 -7.007348513805025E-15 4.582984854281796E-12 -2.256685053408863E-15 8.62749789658185E-13 -4.299704807460121E-15
q -7.007348513805025E-15 2.398147973616671E-14 -1.417944510363324E-11 7.127116108375714E-15 -2.676388120860839E-12 1.483187517101389E-14
tp 4.582984854281796E-12 -1.417944510363324E-11 1.69823378055356E-7 -5.661568965633644E-11 3.067811960910444E-8 2.816943257585129E-11
node -2.256685053408863E-15 7.127116108375714E-15 -5.661568965633644E-11 6.403573306286004E-10 -6.3959819609321E-10 1.948190865082138E-11
peri 8.62749789658185E-13 -2.676388120860839E-12 3.067811960910444E-8 -6.3959819609321E-10 6.174558069264331E-9 -1.416268819651212E-11
i -4.299704807460121E-15 1.483187517101389E-14 2.816943257585129E-11 1.948190865082138E-11 -1.416268819651212E-11 3.607987174780646E-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 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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