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175747 (1998 QK78)
Classification: Main-belt Asteroid          SPK-ID: 2175747
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1554674713527972 4.2405e-08  
a 2.661360127413301 1.1734e-08 au
q 2.247605198045197 1.1082e-07 au
i 7.281984335106605 5.5264e-06 deg
node 214.9394262090663 2.6088e-05 deg
peri 144.2793474546398 3.1573e-05 deg
M 38.41414378431123 1.5913e-05 deg
tp 2459031.283560537902
(2020-Jun-30.78356054)
6.9953e-05 TDB
period 1585.820018491072
4.34
1.0488e-05
2.871e-08
d
yr
n .2270118902538162 1.5014e-09 deg/d
Q 3.075115056781406 1.3559e-08 au
  Orbit Determination Parameters
   # obs. used (total)      660  
   data-arc span      8202 days (22.46 yr)  
   first obs. used      1998-08-19  
   last obs. used      2021-02-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54006  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:06:39  

Additional Information
 Earth MOID = 1.24789 au 
 Jupiter MOID = 2.41348 au 
 T_jup = 3.357 
[ 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 15.5   n/a MPO254231  
diameter diameter 4.069 km 0.852 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.074   0.036 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

175747 (1998 QK78)          Discovered 1998-Aug-24 by LINEAR at Socorro
Reference: 20080221/Numbers.arcLast Updated: 2008-02-22
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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