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22673 (1998 QR38)
Classification: Main-belt Asteroid          SPK-ID: 2022673
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 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08837970285680881 1.3159e-08  
a 3.13402107788938 1.5992e-08 au
q 2.857037226278541 4.3521e-08 au
i 9.09038111035189 4.1246e-07 deg
node 318.1387710176323 3.0764e-06 deg
peri 49.55276409238019 1.7258e-05 deg
M 347.0612371878934 1.3963e-05 deg
tp 2459273.335238594471
(2021-Feb-27.83523859)
7.8552e-05 TDB
period 2026.521876533302
5.55
1.5511e-05
4.247e-08
d
yr
n .1776442702981519 1.3597e-09 deg/d
Q 3.411004929500219 1.7406e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2129  
   data-arc span      13989 days (38.30 yr)  
   first obs. used      1982-10-21  
   last obs. used      2021-02-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41129  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:09:08  

Additional Information
 Earth MOID = 1.86306 au 
 Jupiter MOID = 2.04687 au 
 T_jup = 3.187 
[ 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 13.14   n/a E2021B10  
diameter diameter 16.664 km 0.389 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.044   0.003 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

22673 (1998 QR38)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20010309/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 QR38 = 1982 UJ9 = 1987 SC23 = 1999 XV188 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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