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JPL Small-Body Database Browser
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1220 Crocus (1932 CU)
Classification: Main-belt Asteroid          SPK-ID: 2001220
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07386312433218245 3.3787e-08  
a 3.003918572937331 1.4269e-08 au
q 2.782039761900709 1.0359e-07 au
i 11.36367147031467 3.6442e-06 deg
node 113.3339117687521 2.2956e-05 deg
peri 333.0341508369892 3.7939e-05 deg
M 318.1806895554377 3.0004e-05 deg
tp 2458821.404736447099
(2019-Dec-03.90473645)
0.00015872 TDB
period 1901.650320762197
5.21
1.3549e-05
3.71e-08
d
yr
n .1893092521109292 1.3488e-09 deg/d
Q 3.225797383973954 1.5323e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2944  
   data-arc span      32063 days (87.78 yr)  
   first obs. used      1932-02-11  
   last obs. used      2019-11-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .39376  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-03 20:19:00  

Additional Information
 Earth MOID = 1.80359 au 
 Jupiter MOID = 1.93428 au 
 T_jup = 3.218 
[ 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 11.72   n/a PDS3 (MPC 17261)  
magnitude slope G 0.23   n/a PDS3 (MPC 17261) Fit
diameter diameter 17.866 km 0.175 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 491.4 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Pilcher, F.; Benishek, V.; Franco, L.; Harris, A.W.; et al. (2015). Minor Planet Bull. 42, 155-157.]
[Durech, J.; Hanus, J. (2018) Astron. Astrophys. 620, A91.]
geometric albedo albedo 0.114   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

1220 Crocus (1932 CU)          Discovered 1932-Feb-11 by Reinmuth, K. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1932 CU = 1955 PC 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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