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120180 (2003 QH104)
Classification: Main-belt Asteroid          SPK-ID: 2120180
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1114596272087226 4.2338e-08  
a 2.688128014812781 1.7614e-08 au
q 2.388510268392424 1.1662e-07 au
i 14.68035067199014 3.8483e-06 deg
node 120.5581008059812 2.0789e-05 deg
peri 165.9767726388915 3.2516e-05 deg
M 5.892153633795176 2.4697e-05 deg
tp 2459174.152166593069
(2020-Nov-20.65216659)
0.0001105 TDB
period 1609.805279361951
4.41
1.5822e-05
4.332e-08
d
yr
n .2236295312329244 2.198e-09 deg/d
Q 2.987745761233136 1.9577e-08 au
  Orbit Determination Parameters
   # obs. used (total)      700  
   data-arc span      8564 days (23.45 yr)  
   first obs. used      1997-02-02  
   last obs. used      2020-07-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54238  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 17:58:56  

Additional Information
 Earth MOID = 1.37262 au 
 Jupiter MOID = 2.21992 au 
 T_jup = 3.318 
[ 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 15.45   n/a E2021B55  

120180 (2003 QH104)          Discovered 2003-Aug-27 by Broughton, J. at Reedy Creek
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

[ show close-approach data ]
Alternate Designations
 2003 QH104 = 1998 HQ16 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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