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46028 (2001 DT21)
Classification: Main-belt Asteroid          SPK-ID: 2046028
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1533767918088088 3.7868e-08  
a 2.705906456157225 1.5359e-08 au
q 2.290883204977087 1.0293e-07 au
i 11.24408430486065 4.6597e-06 deg
node 111.9778738690024 2.6135e-05 deg
peri 40.06247829150227 3.1838e-05 deg
M 134.1442454805532 1.8274e-05 deg
tp 2458394.689018595834
(2018-Oct-03.18901860)
8.121e-05 TDB
period 1625.801781688178
4.45
1.3843e-05
3.79e-08
d
yr
n .221429207456144 1.8853e-09 deg/d
Q 3.120929707337364 1.7715e-08 au
  Orbit Determination Parameters
   # obs. used (total)      845  
   data-arc span      8065 days (22.08 yr)  
   first obs. used      1997-06-03  
   last obs. used      2019-07-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54931  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 08:20:20  

Additional Information
 Earth MOID = 1.31494 au 
 Jupiter MOID = 1.93723 au 
 T_jup = 3.321 
[ 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 14.9   n/a MPO474332  
diameter diameter 3.104 km 0.162 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.242   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

46028 (2001 DT21)          Discovered 2001-Feb-16 by LINEAR at Socorro
Reference: 20020822/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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