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JPL Small-Body Database Browser
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11555 (1993 CR1)
Classification: Main-belt Asteroid          SPK-ID: 2011555
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1026153578030026 4.6011e-08  
a 2.671880222171521 1.1411e-08 au
q 2.397704277166625 1.2545e-07 au
i 13.66751846027511 5.132e-06 deg
node 149.0865784001724 1.585e-05 deg
peri 24.69257234898462 2.5315e-05 deg
M 74.24899918636858 1.9479e-05 deg
tp 2458671.487795550674
(2019-Jul-06.98779555)
8.5848e-05 TDB
period 1595.232190328332
4.37
1.0219e-05
2.798e-08
d
yr
n .2256724771369518 1.4457e-09 deg/d
Q 2.946056167176418 1.2582e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1764  
   data-arc span      9933 days (27.20 yr)  
   first obs. used      1993-02-15  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47932  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 03:34:04  

Additional Information
 Earth MOID = 1.41083 au 
 Jupiter MOID = 2.04199 au 
 T_jup = 3.333 
[ 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 13.5   n/a MPO473923  
diameter diameter 5.201 km 0.381 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.313259 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 sidereal period (not synodic); Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
geometric albedo albedo 0.285   0.057 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

11555 (1993 CR1)          Discovered 1993-Feb-15 by Ueda, S., Kaneda, H. at Kushiro
Reference: 19990928/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1993 CR1 = 1997 AP6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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