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JPL Small-Body Database Browser
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27023 (1998 QE54)
Classification: Main-belt Asteroid          SPK-ID: 2027023
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1282907699115149 4.434e-08  
a 2.319708444349305 7.5777e-09 au
q 2.02211126205349 1.0144e-07 au
i 5.32369339658469 4.3274e-06 deg
node 311.5673448865513 4.6135e-05 deg
peri 253.639215021508 4.8564e-05 deg
M 204.4342882222469 1.6474e-05 deg
tp 2459558.147695320113
(2021-Dec-09.64769532)
5.9624e-05 TDB
period 1290.471839977463
3.53
6.3233e-06
1.731e-08
d
yr
n .2789677301337216 1.3669e-09 deg/d
Q 2.61730562664512 8.5498e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1827  
   data-arc span      17451 days (47.78 yr)  
   first obs. used      1972-04-09  
   last obs. used      2020-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5215  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 00:55:42  

Additional Information
 Earth MOID = 1.02615 au 
 Jupiter MOID = 2.37314 au 
 T_jup = 3.562 
[ 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 14.0   n/a MPO395266  
diameter diameter 4.284 km 0.120 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.226   0.019 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

27023 (1998 QE54)          Discovered 1998-Aug-20 by LONEOS at Anderson Mesa
Reference: 20010804/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 QE54 = 1972 EL = 1972 GQ = 1979 FK1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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