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JPL Small-Body Database Browser
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19455 (1998 FJ145)
Classification: Main-belt Asteroid          SPK-ID: 2019455
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 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1417753025112469 3.4484e-08  
a 2.425618901290661 8.2585e-09 au
q 2.081726047783179 8.3525e-08 au
i 6.7282972338828 3.5174e-06 deg
node 109.8667745686271 2.7894e-05 deg
peri 207.0022776827362 2.9945e-05 deg
M 187.1421568064248 1.0567e-05 deg
tp 2459663.050320158461
(2022-Mar-24.55032016)
4.1318e-05 TDB
period 1379.851274610323
3.78
7.047e-06
1.929e-08
d
yr
n .2608976826880606 1.3324e-09 deg/d
Q 2.769511754798143 9.4293e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3246  
   data-arc span      20418 days (55.90 yr)  
   first obs. used      1964-03-11  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41463  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 22:48:31  

Additional Information
 Earth MOID = 1.07044 au 
 Jupiter MOID = 2.49839 au 
 T_jup = 3.488 
[ 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 13.6   n/a MPO302184  
diameter diameter 4.176 km 0.139 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.403   0.084 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19455 (1998 FJ145)          Discovered 1998-Mar-24 by LINEAR at Socorro
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 FJ145 = 1964 EP = 1999 VQ203 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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