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101715 (1999 DT4)
Classification: Main-belt Asteroid          SPK-ID: 2101715
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1936737996081835 5.5833e-08  
a 3.130662681938495 2.9222e-08 au
q 2.52433534503592 1.7939e-07 au
i 14.32389548557688 6.2803e-06 deg
node 219.2629753851048 1.9267e-05 deg
peri 346.7385306524232 2.3002e-05 deg
M 262.3401126127945 1.4905e-05 deg
tp 2459549.366291974241
(2021-Nov-30.86629197)
8.8708e-05 TDB
period 2023.265338483419
5.54
2.8328e-05
7.756e-08
d
yr
n .1779301968716795 2.4913e-09 deg/d
Q 3.736990018841069 3.4882e-08 au
  Orbit Determination Parameters
   # obs. used (total)      519  
   data-arc span      7937 days (21.73 yr)  
   first obs. used      1999-01-23  
   last obs. used      2020-10-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5545  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:58:53  

Additional Information
 Earth MOID = 1.52165 au 
 Jupiter MOID = 1.25581 au 
 T_jup = 3.137 
[ 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 14.6   n/a MPO422324  
diameter diameter 6.651 km 0.191 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.058   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

101715 (1999 DT4)          Discovered 1999-Feb-17 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1999 DT4 = 2000 LC4 = 2001 US181 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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