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JPL Small-Body Database Browser
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58850 (1998 HH74)
Classification: Main-belt Asteroid          SPK-ID: 2058850
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07076808292460049 4.0888e-08  
a 2.922044984216698 2.0556e-08 au
q 2.715257462464237 1.175e-07 au
i 2.655981957972207 5.0687e-06 deg
node 147.5853578682502 8.7295e-05 deg
peri 127.2939741331539 9.3825e-05 deg
M 15.96798442887754 3.3056e-05 deg
tp 2458519.576180482394
(2019-Feb-05.07618048)
0.00016759 TDB
period 1824.436587854682
5.00
1.9251e-05
5.271e-08
d
yr
n .1973211907700868 2.0821e-09 deg/d
Q 3.128832505969158 2.201e-08 au
  Orbit Determination Parameters
   # obs. used (total)      722  
   data-arc span      8775 days (24.02 yr)  
   first obs. used      1995-10-18  
   last obs. used      2019-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59975  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 07:20:25  

Additional Information
 Earth MOID = 1.69945 au 
 Jupiter MOID = 1.94259 au 
 T_jup = 3.274 
[ 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 15.1   n/a MPO439479  

58850 (1998 HH74)          Discovered 1998-Apr-21 by LINEAR at Socorro
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 HH74 = 2001 XQ265 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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