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74338 (1998 VK15)
Classification: Main-belt Asteroid          SPK-ID: 2074338
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3207090918005048 5.4491e-08  
a 3.103085277596326 2.0662e-08 au
q 2.107897616438891 1.716e-07 au
i 2.264054176011217 4.7694e-06 deg
node 27.56958323488149 0.00012962 deg
peri 321.4081395326107 0.00012974 deg
M 13.92777777861617 6.9784e-06 deg
tp 2458923.255365735126
(2020-Mar-14.75536573)
3.8183e-05 TDB
period 1996.590466718196
5.47
1.9941e-05
5.46e-08
d
yr
n .180307382009959 1.8009e-09 deg/d
Q 4.098272938753762 2.7288e-08 au
  Orbit Determination Parameters
   # obs. used (total)      719  
   data-arc span      15185 days (41.57 yr)  
   first obs. used      1976-09-25  
   last obs. used      2018-04-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60609  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 02:29:44  

Additional Information
 Earth MOID = 1.10231 au 
 Jupiter MOID = 1.33714 au 
 T_jup = 3.139 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456615.5 (2013-Nov-19.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3267589840211587 5.3819e-08  
q 2.084242609716263 1.6977e-07 au
tp 2456930.493514480014
(2014-Sep-29.99351448)
2.7832e-05 TDB
node 27.65361926010852 0.00012894 deg
peri 321.5248366212018 0.00012904 deg
i 2.277191895661412 4.7932e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      719  
   data-arc span      15185 days (41.57 yr)  
   first obs. used      1976-09-25  
   last obs. used      2018-04-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60609  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 02:29:44  

Additional Information
 Jupiter MOID = 1.33714 au 
 T_jup = 3.139 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.896471774539226E-15 -9.106532955336017E-15 -4.775877067225088E-13 -1.924185040375372E-14 -1.199022068582875E-13 -2.814882476798584E-15
q -9.106532955336017E-15 2.882056322926645E-14 1.538070230106245E-12 6.25305684934502E-14 3.717287414650213E-13 8.861754716828688E-15
tp -4.775877067225088E-13 1.538070230106245E-12 7.746275473829836E-10 8.449103846652274E-12 1.843137549175916E-10 3.311432862584449E-13
node -1.924185040375372E-14 6.25305684934502E-14 8.449103846652274E-12 1.66247742720293E-8 -1.660902688050998E-8 -2.747380045829288E-10
peri -1.199022068582875E-13 3.717287414650213E-13 1.843137549175916E-10 -1.660902688050998E-8 1.665252239141566E-8 2.746358606417465E-10
i -2.814882476798584E-15 8.861754716828688E-15 3.311432862584449E-13 -2.747380045829288E-10 2.746358606417465E-10 2.297485047372561E-11

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 14.7   n/a MPO449469  
diameter diameter 7.333 km 0.267 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 7.480 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Clark, M. (2015) Minor Planet Bull. 42, 15-20.]
geometric albedo albedo 0.047   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74338 (1998 VK15)          Discovered 1998-Nov-10 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 VK15 = 1976 ST6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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