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72478 (2001 DK38)
Classification: Main-belt Asteroid          SPK-ID: 2072478
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1775294082264574 3.6504e-08  
a 2.723308304375084 1.3166e-08 au
q 2.239840992681178 1.0103e-07 au
i 13.57742573730217 4.6756e-06 deg
node 154.3019046654825 1.802e-05 deg
peri 108.241978572815 2.235e-05 deg
M 40.46289112452754 1.3274e-05 deg
tp 2459015.999285602803
(2020-Jun-15.49928560)
6.0208e-05 TDB
period 1641.51041453211
4.49
1.1904e-05
3.259e-08
d
yr
n .2193102138207348 1.5904e-09 deg/d
Q 3.206775616068989 1.5503e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1127  
   data-arc span      8042 days (22.02 yr)  
   first obs. used      1998-08-17  
   last obs. used      2020-08-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55482  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 13:02:17  

Additional Information
 Earth MOID = 1.2662 au 
 Jupiter MOID = 2.06752 au 
 T_jup = 3.295 
[ 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 14.71   n/a E2021B10  
diameter diameter 3.499 km 0.833 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.251   0.177 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

72478 (2001 DK38)          Discovered 2001-Feb-19 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2001 DK38 = 1998 RY17 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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