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52585 (1997 ON2)
Classification: Main-belt Asteroid          SPK-ID: 2052585
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ 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 .1511280215083967 4.6264e-08  
a 2.570548042871237 1.6556e-08 au
q 2.182066202959826 1.1811e-07 au
i 8.43378097962507 5.364e-06 deg
node 263.0665299791887 4.3573e-05 deg
peri 4.190749576763039 4.8913e-05 deg
M 228.4809236207778 2.269e-05 deg
tp 2459550.450073059024
(2021-Dec-01.95007306)
9.5201e-05 TDB
period 1505.34836277581
4.12
1.4543e-05
3.982e-08
d
yr
n .2391473023135804 2.3104e-09 deg/d
Q 2.959029882782649 1.9058e-08 au
  Orbit Determination Parameters
   # obs. used (total)      718  
   data-arc span      8223 days (22.51 yr)  
   first obs. used      1997-07-29  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59008  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 10:31:14  

Additional Information
 Earth MOID = 1.16623 au 
 Jupiter MOID = 2.13183 au 
 T_jup = 3.399 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456835.5 (2014-Jun-27.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1521401919771509 4.5976e-08  
q 2.178781019192484 1.1746e-07 au
tp 2456540.992938642714
(2013-Sep-05.49293864)
9.6418e-05 TDB
node 263.1547071908976 4.36e-05 deg
peri 4.238329007454513 4.8884e-05 deg
i 8.432881022135716 5.361e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      718  
   data-arc span      8223 days (22.51 yr)  
   first obs. used      1997-07-29  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59008  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 10:31:14  

Additional Information
 Jupiter MOID = 2.13183 au 
 T_jup = 3.399 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.113825492321371E-15 -5.362230884127754E-15 -1.926787853750786E-12 -2.622515260145417E-14 -4.450542381199729E-13 2.484554104877885E-16
q -5.362230884127754E-15 1.379580697531454E-14 4.661983575186944E-12 6.902487564587703E-14 1.084472245292033E-12 -2.485215588020273E-16
tp -1.926787853750786E-12 4.661983575186944E-12 9.296393840646543E-9 4.440428985926823E-11 2.190838460374789E-9 -3.580125604323784E-12
node -2.622515260145417E-14 6.902487564587703E-14 4.440428985926823E-11 1.900967041835259E-9 -1.868592763376113E-9 -9.403560052204998E-11
peri -4.450542381199729E-13 1.084472245292033E-12 2.190838460374789E-9 -1.868592763376113E-9 2.389623011164221E-9 9.220652549847077E-11
i 2.484554104877885E-16 -2.485215588020273E-16 -3.580125604323784E-12 -9.403560052204998E-11 9.220652549847077E-11 2.87403271450325E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.1   n/a MPO459210  
diameter diameter 2.788 km 0.504 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.273   0.060 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

52585 (1997 ON2)          Discovered 1997-Jul-29 by Antonini, P. at Bedoin
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1997 ON2 = 2001 MT25 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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