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193674 (2001 DT99)
Classification: Main-belt Asteroid          SPK-ID: 2193674
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2394972879788094 5.0855e-08  
a 2.79232093246796 1.9621e-08 au
q 2.123567641975423 1.3791e-07 au
i 7.155346222681081 5.1963e-06 deg
node 256.8527974062799 5.1545e-05 deg
peri 241.7968852124912 5.3917e-05 deg
M 95.62494542083887 1.5078e-05 deg
tp 2458747.795173869747
(2019-Sep-21.29517387)
6.8839e-05 TDB
period 1704.301494653459
4.67
1.7964e-05
4.918e-08
d
yr
n .2112302319333469 2.2264e-09 deg/d
Q 3.461074222960497 2.4321e-08 au
  Orbit Determination Parameters
   # obs. used (total)      424  
   data-arc span      7559 days (20.70 yr)  
   first obs. used      1999-10-13  
   last obs. used      2020-06-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49727  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 22:21:15  

Additional Information
 Earth MOID = 1.14814 au 
 Jupiter MOID = 1.66848 au 
 T_jup = 3.275 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457605.5 (2016-Aug-05.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2406221550746455 5.0844e-08  
q 2.119548219675588 1.3817e-07 au
tp 2457043.990943388000
(2015-Jan-21.49094339)
6.1478e-05 TDB
node 256.8764599235361 5.1548e-05 deg
peri 241.7635449459029 5.3891e-05 deg
i 7.157046576482432 5.1973e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      424  
   data-arc span      7559 days (20.70 yr)  
   first obs. used      1999-10-13  
   last obs. used      2020-06-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49727  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 22:21:15  

Additional Information
 Jupiter MOID = 1.66848 au 
 T_jup = 3.275 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.585064254752283E-15 -6.988182500205401E-15 1.373511083930826E-12 1.338752415789225E-14 3.591717771012211E-13 -5.895429376798294E-15
q -6.988182500205401E-15 1.90920705565269E-14 -3.597608350781319E-12 -3.6229832833828E-14 -9.195849001953124E-13 1.599043262714006E-14
tp 1.373511083930826E-12 -3.597608350781319E-12 3.779500235285456E-9 4.516640761508457E-12 1.010889826018878E-9 -6.008593427751157E-12
node 1.338752415789225E-14 -3.6229832833828E-14 4.516640761508457E-12 2.657178372687949E-9 -2.634903759814377E-9 -6.095162326837848E-11
peri 3.591717771012211E-13 -9.195849001953124E-13 1.010889826018878E-9 -2.634903759814377E-9 2.904259680238566E-9 5.890286832909737E-11
i -5.895429376798294E-15 1.599043262714006E-14 -6.008593427751157E-12 -6.095162326837848E-11 5.890286832909737E-11 2.701224740287258E-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 16.01   n/a E2021B55  
diameter diameter 3.755 km 0.082 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.072   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

193674 (2001 DT99)          Discovered 2001-Feb-17 by NEAT at Haleakala
Reference: 20081113/Numbers.arcLast Updated: 2008-11-17

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