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117154 (2004 QG4)
Classification: Main-belt Asteroid          SPK-ID: 2117154
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1211127815526128 5.2343e-08  
a 3.173666512694816 3.5347e-08 au
q 2.789294933621966 1.6671e-07 au
i 19.10159796476126 6.6538e-06 deg
node 172.7810921219503 1.6248e-05 deg
peri 233.1164957704699 3.0434e-05 deg
M 251.9567991556803 2.8066e-05 deg
tp 2459620.276781101198
(2022-Feb-09.77678110)
0.00016568 TDB
period 2065.096548906637
5.65
3.45e-05
9.446e-08
d
yr
n .1743259898383935 2.9124e-09 deg/d
Q 3.558038091767665 3.9628e-08 au
  Orbit Determination Parameters
   # obs. used (total)      525  
   data-arc span      7635 days (20.90 yr)  
   first obs. used      1998-08-24  
   last obs. used      2019-07-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54337  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 18:20:47  

Additional Information
 Earth MOID = 1.83618 au 
 Jupiter MOID = 2.02066 au 
 T_jup = 3.105 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.6   n/a MPO475028  
diameter diameter 7.469 km 1.406 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.050   0.042 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

117154 (2004 QG4)          Discovered 2004-Aug-19 by Siding Spring Survey at Siding Spring
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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