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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1228315798964917 5.3132e-08  
a 3.169238724177294 3.5786e-08 au
q 2.779956124617455 1.6847e-07 au
i 19.10490197191405 7.63e-06 deg
node 172.9785521669829 1.6648e-05 deg
peri 233.0995681955247 3.3312e-05 deg
M 182.0622842757934 2.9364e-05 deg
tp 2459619.082869285479
(2022-Feb-08.58286929)
0.00017365 TDB
period 2060.776330922
5.64
3.4904e-05
9.556e-08
d
yr
n .1746914473920294 2.9588e-09 deg/d
Q 3.558521323737132 4.0181e-08 au
  Orbit Determination Parameters
   # obs. used (total)      493  
   data-arc span      7563 days (20.71 yr)  
   first obs. used      1998-08-24  
   last obs. used      2019-05-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54157  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 06:54:29  

Additional Information
 Earth MOID = 1.8264 au 
 Jupiter MOID = 2.01813 au 
 T_jup = 3.106 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456908.5 (2014-Sep-08.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1248172263636926 5.3208e-08  
q 2.772087428459165 1.6912e-07 au
tp 2457559.337751637746
(2016-Jun-19.83775164)
0.0001612 TDB
node 173.0186416525709 1.6638e-05 deg
peri 233.0046116357396 3.2855e-05 deg
i 19.11784136379987 7.6334e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      493  
   data-arc span      7563 days (20.71 yr)  
   first obs. used      1998-08-24  
   last obs. used      2019-05-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54157  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 06:54:29  

Additional Information
 Jupiter MOID = 2.01813 au 
 T_jup = 3.106 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.831128445423726E-15 -8.839492674685575E-15 -2.391487834293708E-12 -5.155601009429611E-15 -4.124364286527209E-13 1.875486884781668E-16
q -8.839492674685575E-15 2.860308488908031E-14 8.379349943459233E-12 1.372092742180557E-14 1.385049397336093E-12 -6.511721335719047E-16
tp -2.391487834293708E-12 8.379349943459233E-12 2.598537323814798E-8 -1.181745873418912E-11 4.584496232729761E-9 -1.18330947834157E-12
node -5.155601009429611E-15 1.372092742180557E-14 -1.181745873418912E-11 2.768294064079243E-10 -2.631485590444372E-10 -2.379403082542356E-12
peri -4.124364286527209E-13 1.385049397336093E-12 4.584496232729761E-9 -2.631485590444372E-10 1.079421205931196E-9 1.934032980500445E-12
i 1.875486884781668E-16 -6.511721335719047E-16 -1.18330947834157E-12 -2.379403082542356E-12 1.934032980500445E-12 5.826829784909476E-11

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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