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JPL Small-Body Database Browser
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46027 (2001 DG21)
Classification: Main-belt Asteroid          SPK-ID: 2046027
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 .2550618932791188 3.9865e-08  
a 2.749591533439147 1.7522e-08 au
q 2.048275511175923 1.1235e-07 au
i 15.85789783594854 5.5883e-06 deg
node 126.4358421538405 2.3266e-05 deg
peri 158.0754489035698 2.7142e-05 deg
M 350.5123828932518 1.6077e-05 deg
tp 2459044.388965912447
(2020-Jul-13.88896591)
7.46e-05 TDB
period 1665.331510611112
4.56
1.5919e-05
4.358e-08
d
yr
n .2161731749541531 2.0664e-09 deg/d
Q 3.450907555702372 2.1992e-08 au
  Orbit Determination Parameters
   # obs. used (total)      784  
   data-arc span      14777 days (40.46 yr)  
   first obs. used      1979-07-24  
   last obs. used      2020-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58314  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 08:20:20  

Additional Information
 Earth MOID = 1.03994 au 
 Jupiter MOID = 1.8073 au 
 T_jup = 3.245 
[ 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 14.4   n/a MPO337627  
diameter diameter 8.206 km 0.072 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.072   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

46027 (2001 DG21)          Discovered 2001-Feb-16 by LINEAR at Socorro
Reference: 20020822/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2001 DG21 = 1979 OS1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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