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JPL Small-Body Database Browser
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74038 (1998 HE74)
Classification: Main-belt Asteroid          SPK-ID: 2074038
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1679500258724653 3.503e-08  
a 2.34699011613238 1.0259e-08 au
q 1.952813065405526 8.4252e-08 au
i 1.852785881097446 4.2507e-06 deg
node 126.4126752783566 0.00013734 deg
peri 135.0750332120261 0.00013815 deg
M 266.0593851683713 1.7095e-05 deg
tp 2458943.201665732071
(2020-Apr-03.70166573)
6.3265e-05 TDB
period 1313.304153742961
3.60
8.6107e-06
2.357e-08
d
yr
n .2741177654650584 1.7973e-09 deg/d
Q 2.741167166859233 1.1982e-08 au
  Orbit Determination Parameters
   # obs. used (total)      826  
   data-arc span      7653 days (20.95 yr)  
   first obs. used      1998-04-21  
   last obs. used      2019-04-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55968  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 07:43:38  

Additional Information
 Earth MOID = .937472 au 
 Jupiter MOID = 2.32371 au 
 T_jup = 3.540 
[ 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 16.0   n/a MPO426448  

74038 (1998 HE74)          Discovered 1998-Apr-21 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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