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JPL Small-Body Database Browser
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390820 (2004 LQ23)
Classification: Main-belt Asteroid          SPK-ID: 2390820
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2672868358938058 7.289e-08  
a 3.181223048232785 6.4523e-08 au
q 2.330924005398197 2.1618e-07 au
i 26.27437988876111 1.3514e-05 deg
node 31.33704620245025 1.9229e-05 deg
peri 287.6277481368788 3.4756e-05 deg
M 198.2419365801863 2.7301e-05 deg
tp 2459531.721609396434
(2021-Nov-13.22160940)
0.00017299 TDB
period 2072.476464512697
5.67
6.3052e-05
1.726e-07
d
yr
n .1737052295475148 5.2847e-09 deg/d
Q 4.031522091067374 8.1769e-08 au
  Orbit Determination Parameters
   # obs. used (total)      144  
   data-arc span      7020 days (19.22 yr)  
   first obs. used      1999-11-09  
   last obs. used      2019-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52728  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 01:19:29  

Additional Information
 Earth MOID = 1.45949 au 
 Jupiter MOID = 1.98833 au 
 T_jup = 2.987 
[ 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 15.4   n/a MPO434441  
diameter diameter 4.753 km 0.126 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.049   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

390820 (2004 LQ23)          Discovered 2004-Jun-14 by Siding Spring Survey at Siding Spring
Reference: Last Updated: 2014-04-17

[ show close-approach data ]
Alternate Designations
 2004 LQ23 = 1999 VE95 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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