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JPL Small-Body Database Browser
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74054 (1998 JT4)
Classification: Outer Main-belt Asteroid          SPK-ID: 2074054
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1618531978159609 5.6169e-08  
a 3.934668285130005 6.5605e-08 au
q 3.29782964083667 2.2308e-07 au
i 5.052274767439155 5.9937e-06 deg
node 65.44087415847096 8.267e-05 deg
peri 155.3956434753094 8.6031e-05 deg
M 253.023980409651 2.8395e-05 deg
tp 2459447.619243907264
(2021-Aug-21.11924391)
0.00023967 TDB
period 2850.759721425713
7.80
7.1299e-05
1.952e-07
d
yr
n .1262821265834211 3.1584e-09 deg/d
Q 4.571506929423339 7.6224e-08 au
  Orbit Determination Parameters
   # obs. used (total)      558  
   data-arc span      7855 days (21.51 yr)  
   first obs. used      1998-04-22  
   last obs. used      2019-10-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60243  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 08:49:27  

Additional Information
 Earth MOID = 2.29068 au 
 Jupiter MOID = .4182 au 
 T_jup = 3.032 
[ 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 13.5   n/a MPO432293  
diameter diameter 11.218 km 0.691 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  
geometric albedo albedo 0.067   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  

74054 (1998 JT4)          Discovered 1998-May-01 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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