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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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1936738045423841 5.4766e-08  
a 3.130662684435939 2.8705e-08 au
q 2.524335331602357 1.7693e-07 au
i 14.32389590284581 6.1121e-06 deg
node 219.2629750499424 1.9241e-05 deg
peri 346.7385314545687 2.2953e-05 deg
M 262.3401115531386 1.4717e-05 deg
tp 2459549.366298586476
(2021-Nov-30.86629859)
8.7478e-05 TDB
period 2023.265340904468
5.54
2.7827e-05
7.619e-08
d
yr
n .1779301966587674 2.4472e-09 deg/d
Q 3.73699003726952 3.4265e-08 au
  Orbit Determination Parameters
   # obs. used (total)      526  
   data-arc span      7968 days (21.82 yr)  
   first obs. used      1999-01-23  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55195  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-17 22:29:35  

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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