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JPL Small-Body Database Browser
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19405 (1998 FT8)
Classification: Main-belt Asteroid          SPK-ID: 2019405
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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1397731911428662 4.4854e-08  
a 2.685966343136075 1.0804e-08 au
q 2.310540256053611 1.2126e-07 au
i 11.09973845393747 5.6368e-06 deg
node 21.29432461225885 1.8882e-05 deg
peri 213.2230658154795 2.5292e-05 deg
M 337.4326736606936 1.681e-05 deg
tp 2459101.292190748230
(2020-Sep-08.79219075)
7.5121e-05 TDB
period 1607.863870261118
4.40
9.7009e-06
2.656e-08
d
yr
n .2238995518579169 1.3509e-09 deg/d
Q 3.06139243021854 1.2314e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1319  
   data-arc span      17024 days (46.61 yr)  
   first obs. used      1973-09-19  
   last obs. used      2020-04-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52846  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 05:00:51  

Additional Information
 Earth MOID = 1.30905 au 
 Jupiter MOID = 1.95494 au 
 T_jup = 3.333 
[ 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 14.0   n/a MPO279717  
diameter diameter 3.973 km 0.776 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.256   0.081 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19405 (1998 FT8)          Discovered 1998-Mar-21 by Spacewatch at Kitt Peak
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 FT8 = 4238 T-2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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