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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 ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1948421926583718 3.3047e-08  
a 3.095968839425679 1.9261e-08 au
q 2.492743482349985 9.9328e-08 au
i 3.054769169065604 4.5684e-06 deg
node 16.60805815665852 6.5511e-05 deg
peri 255.2230984853802 6.656e-05 deg
M 176.1584879314709 1.2273e-05 deg
tp 2458422.869049058880
(2018-Oct-31.36904906)
6.6391e-05 TDB
period 1989.726106613478
5.45
1.8568e-05
5.084e-08
d
yr
n .1809294248104939 1.6884e-09 deg/d
Q 3.699194196501373 2.3014e-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-Jul-09 00:52:42  

Additional Information
 Earth MOID = 1.47869 au 
 Jupiter MOID = 1.4352 au 
 T_jup = 3.192 
[ 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 14.39   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

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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