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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1278329490237679 3.3781e-08  
a 2.259926570635977 9.6064e-09 au
q 1.971033492534409 7.5105e-08 au
i 6.127657771566387 4.1803e-06 deg
node 236.3579288950455 4.2293e-05 deg
peri 236.4652502714051 4.6557e-05 deg
M 27.66539433615351 1.9227e-05 deg
tp 2458905.138234362210
(2020-Feb-25.63823436)
6.6184e-05 TDB
period 1240.908956961485
3.40
7.9122e-06
2.166e-08
d
yr
n .2901099214252618 1.8498e-09 deg/d
Q 2.548819648737545 1.0834e-08 au
  Orbit Determination Parameters
   # obs. used (total)      829  
   data-arc span      8917 days (24.41 yr)  
   first obs. used      1995-12-19  
   last obs. used      2020-05-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51482  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 22:48:50  

Additional Information
 Earth MOID = .995229 au 
 Jupiter MOID = 2.57223 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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