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74379 (1998 XU12)
Classification: Main-belt Asteroid          SPK-ID: 2074379
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04305813172207365 4.1047e-08  
a 2.779464592877017 1.9293e-08 au
q 2.659786040320079 1.1002e-07 au
i 6.003705389963869 4.6796e-06 deg
node 227.9169795350998 4.3161e-05 deg
peri 185.590493839531 7.1461e-05 deg
M 245.3104579744891 5.6833e-05 deg
tp 2459539.714377531421
(2021-Nov-21.21437753)
0.00026741 TDB
period 1692.54469486096
4.63
1.7623e-05
4.825e-08
d
yr
n .2126974850903854 2.2146e-09 deg/d
Q 2.899143145433956 2.0124e-08 au
  Orbit Determination Parameters
   # obs. used (total)      676  
   data-arc span      7506 days (20.55 yr)  
   first obs. used      1998-12-15  
   last obs. used      2019-07-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6179  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 17:14:52  

Additional Information
 Earth MOID = 1.67053 au 
 Jupiter MOID = 2.28465 au 
 T_jup = 3.324 
[ 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 15.1   n/a MPO259798  
diameter diameter 4.944 km 0.199 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.115   0.018 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74379 (1998 XU12)          Discovered 1998-Dec-15 by Korlevic, K. at Visnjan
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 XU12 = 2002 RD55 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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