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JPL Small-Body Database Browser
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58955 (1998 QG78)
Classification: Main-belt Asteroid          SPK-ID: 2058955
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1278659127546078 3.5277e-08  
a 2.259735302102629 1.0184e-08 au
q 1.970792185115467 7.774e-08 au
i 6.128137512227038 4.3799e-06 deg
node 236.360012740112 4.4212e-05 deg
peri 236.5631782009002 4.8791e-05 deg
M 271.5348778753518 2.1075e-05 deg
tp 2458905.397850718005
(2020-Feb-25.89785072)
7.3163e-05 TDB
period 1240.751424090323
3.40
8.3872e-06
2.296e-08
d
yr
n .2901467554340628 1.9613e-09 deg/d
Q 2.548678419089791 1.1486e-08 au
  Orbit Determination Parameters
   # obs. used (total)      766  
   data-arc span      8753 days (23.96 yr)  
   first obs. used      1995-12-19  
   last obs. used      2019-12-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52551  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 06:05:15  

Additional Information
 Earth MOID = .995229 au 
 Jupiter MOID = 2.57354 au 
 T_jup = 3.602 
[ 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 15.8   n/a MPO452969  
diameter diameter 2.007 km 0.502 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.230   0.119 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

58955 (1998 QG78)          Discovered 1998-Aug-24 by LINEAR at Socorro
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 QG78 = 2000 GD178 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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