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1725 CrAO (1930 SK)
Classification: Main-belt Asteroid          SPK-ID: 2001725
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 51 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08829109088873392 1.7891e-08  
a 2.904865617571921 1.0505e-08 au
q 2.648391863311321 4.9548e-08 au
i 3.170935256260998 4.8082e-07 deg
node 119.0822000565242 8.9301e-06 deg
peri 229.6634345659406 1.2479e-05 deg
M 136.1491298106781 8.1684e-06 deg
tp 2458712.588564742160
(2019-Aug-17.08856474)
4.0242e-05 TDB
period 1808.370843318547
4.95
9.8095e-06
2.686e-08
d
yr
n .1990742116475196 1.0799e-09 deg/d
Q 3.161339371832522 1.1432e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3238  
   data-arc span      38620 days (105.74 yr)  
   first obs. used      1915-09-09  
   last obs. used      2021-06-04  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .42104  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 12:43:01  

Additional Information
 Earth MOID = 1.64221 au 
 Jupiter MOID = 2.20169 au 
 T_jup = 3.277 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 11.36   n/a E2021B10  
diameter diameter 16.089 km 1.649 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 21.45 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Slivan, S.M.; Binzel, R.P.; Boroumand, S.C.; Pan M.W.; et al. (2008) Icarus 195, 226-276.]
geometric albedo albedo 0.220   0.236 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

1725 CrAO (1930 SK)          Discovered 1930-Sep-20 by Neujmin, G. at Simeis
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1930 SK = 1933 DF = 1950 TV3 = 1960 WL = 1965 UJ = A906 YP = A915 RK 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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