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JPL Small-Body Database Browser
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74117 (1998 QG50)
Classification: Main-belt Asteroid          SPK-ID: 2074117
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2013468210463045 6.5063e-08  
a 2.62697639464223 1.5484e-08 au
q 2.098043048617335 1.7209e-07 au
i 13.60498986666355 6.3596e-06 deg
node 353.4185424790651 1.9323e-05 deg
peri 338.7307977593034 2.1852e-05 deg
M 313.7571654731852 1.0392e-05 deg
tp 2458800.267405223014
(2019-Nov-12.76740522)
4.5525e-05 TDB
period 1555.187233139507
4.26
1.375e-05
3.765e-08
d
yr
n .231483381761858 2.0466e-09 deg/d
Q 3.155909740667125 1.8601e-08 au
  Orbit Determination Parameters
   # obs. used (total)      721  
   data-arc span      10054 days (27.53 yr)  
   first obs. used      1992-02-23  
   last obs. used      2019-09-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55042  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 02:43:19  

Additional Information
 Earth MOID = 1.09349 au 
 Jupiter MOID = 2.25222 au 
 T_jup = 3.334 
[ 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 14.9   n/a MPO436301  
diameter diameter 4.710 km 0.181 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.105   0.029 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74117 (1998 QG50)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 QG50 = 1993 LZ 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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