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123917 (2001 DY97)
Classification: Main-belt Asteroid          SPK-ID: 2123917
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1950790602212754 3.3055e-08  
a 3.095275567947182 1.9246e-08 au
q 2.491452119026171 9.9321e-08 au
i 3.054957602150348 4.5689e-06 deg
node 16.61414353021068 6.5513e-05 deg
peri 255.1835392537513 6.6559e-05 deg
M 140.7289456064057 1.2187e-05 deg
tp 2458422.949975439129
(2018-Oct-31.44997544)
6.6283e-05 TDB
period 1989.057813484907
5.45
1.8552e-05
5.079e-08
d
yr
n .1809902143413649 1.6881e-09 deg/d
Q 3.699099016868192 2.3e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1107  
   data-arc span      9053 days (24.79 yr)  
   first obs. used      1996-04-20  
   last obs. used      2021-02-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48021  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 17:22:16  

Additional Information
 Earth MOID = 1.47569 au 
 Jupiter MOID = 1.43633 au 
 T_jup = 3.192 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457540.5 (2016-Jun-01.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1964238964053862 3.2724e-08  
q 2.485187365952892 9.8257e-08 au
tp 2458424.592906247987
(2018-Nov-02.09290625)
6.6154e-05 TDB
node 16.65731846426824 6.5392e-05 deg
peri 255.5487041537786 6.6441e-05 deg
i 3.059820841667661 4.5728e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1107  
   data-arc span      9053 days (24.79 yr)  
   first obs. used      1996-04-20  
   last obs. used      2021-02-01  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48021  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 17:22:16  

Additional Information
 Jupiter MOID = 1.43633 au 
 T_jup = 3.192 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.07082814969475E-15 -3.177937895949083E-15 -3.542089539922778E-13 2.578754795024731E-15 -9.852326097914979E-14 3.168232903518771E-16
q -3.177937895949083E-15 9.654420683715153E-15 1.171408155910538E-12 -8.85171933568558E-15 2.915779493680321E-13 -8.099901672978088E-16
tp -3.542089539922778E-13 1.171408155910538E-12 4.376364464028581E-9 -1.123873971919333E-11 7.829184621981758E-10 2.557970465115655E-13
node 2.578754795024731E-15 -8.85171933568558E-15 -1.123873971919333E-11 4.276076439292908E-9 -4.271493969775063E-9 3.475670788749902E-11
peri -9.852326097914979E-14 2.915779493680321E-13 7.829184621981758E-10 -4.271493969775063E-9 4.414383658796522E-9 -3.469041364862991E-11
i 3.168232903518771E-16 -8.099901672978088E-16 2.557970465115655E-13 3.475670788749902E-11 -3.469041364862991E-11 2.091080106101155E-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 14.39   n/a MPCxxxxx  
diameter diameter 8.169 km 0.287 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.055   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

123917 (2001 DY97)          Discovered 2001-Feb-17 by LINEAR at Socorro
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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