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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 ]

[ show orbit diagram ]
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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457536.5 (2016-May-28.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .194888567060797 5.4704e-08  
q 2.519159726846756 1.7688e-07 au
tp 2457526.356461649286
(2016-May-17.85646165)
7.1776e-05 TDB
node 219.2694480641558 1.924e-05 deg
peri 346.6008393538921 2.2914e-05 deg
i 14.32761478739345 6.114e-06 deg
  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
 Jupiter MOID = 1.25581 au 
 T_jup = 3.137 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.992538871742399E-15 -9.59524220766879E-15 -1.622972827399989E-13 -2.226422328273551E-14 1.601844900685895E-14 -2.694617672739687E-15
q -9.59524220766879E-15 3.128817943737889E-14 1.20942891250762E-12 7.114086386447272E-14 5.703794829433119E-14 8.642928049401193E-15
tp -1.622972827399989E-13 1.20942891250762E-12 5.151739341710431E-9 -1.317125956425869E-12 9.167755695945606E-10 -4.471170260162307E-13
node -2.226422328273551E-14 7.114086386447272E-14 -1.317125956425869E-12 3.701820115960096E-10 -3.584860307136661E-10 -5.243831194485425E-12
peri 1.601844900685895E-14 5.703794829433119E-14 9.167755695945606E-10 -3.584860307136661E-10 5.250514765402118E-10 4.958780972287594E-12
i -2.694617672739687E-15 8.642928049401193E-15 -4.471170260162307E-13 -5.243831194485425E-12 4.958780972287594E-12 3.738067215903745E-11

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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