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17804 (1998 FH71)
Classification: Main-belt Asteroid          SPK-ID: 2017804
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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0873063893753903 3.3028e-08  
a 3.001627937491165 1.8392e-08 au
q 2.739566640020512 1.0583e-07 au
i 9.867604908117276 4.7436e-06 deg
node 207.9443431404148 2.0842e-05 deg
peri 84.45981637914453 3.5005e-05 deg
M 9.48595555419514 2.7696e-05 deg
tp 2458950.449052902782
(2020-Apr-10.94905290)
0.00014606 TDB
period 1899.475582829389
5.20
1.7458e-05
4.78e-08
d
yr
n .1895259950979508 1.7419e-09 deg/d
Q 3.263689234961818 1.9997e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1771  
   data-arc span      10747 days (29.42 yr)  
   first obs. used      1990-11-21  
   last obs. used      2020-04-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49924  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 04:41:10  

Additional Information
 Earth MOID = 1.74675 au 
 Jupiter MOID = 1.90257 au 
 T_jup = 3.224 
[ 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 13.1   n/a MPO347663  
diameter diameter 8.352 km 0.237 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.146   0.037 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

17804 (1998 FH71)          Discovered 1998-Mar-20 by LINEAR at Socorro
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 FH71 = 1990 WV5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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