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175241 (2005 HQ)
Classification: Main-belt Asteroid          SPK-ID: 2175241
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2047505089945725 5.4197e-08  
a 2.556099730513599 2.1564e-08 au
q 2.03273700965005 1.3496e-07 au
i 2.751565824433185 7.8567e-06 deg
node 326.9975850518271 0.0001293 deg
peri 45.24315831096046 0.00013134 deg
M 146.1599037287512 2.8212e-05 deg
tp 2458594.474545133353
(2019-Apr-20.97454513)
0.0001124 TDB
period 1492.674517334652
4.09
1.8889e-05
5.172e-08
d
yr
n .2411778293387246 3.052e-09 deg/d
Q 3.079462451377148 2.5979e-08 au
  Orbit Determination Parameters
   # obs. used (total)      228  
   data-arc span      8238 days (22.55 yr)  
   first obs. used      1998-08-17  
   last obs. used      2021-03-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .62435  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:04:35  

Additional Information
 Earth MOID = 1.03253 au 
 Jupiter MOID = 2.39575 au 
 T_jup = 3.406 
[ 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 16.6   n/a MPO527349  

175241 (2005 HQ)          Discovered 2005-Apr-16 by Spacewatch at Kitt Peak
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28

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