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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1028824877789442 1.8837e-08  
a 2.673584751528784 1.062e-08 au
q 2.398519701003652 4.9928e-08 au
i 13.67448391935168 9.2136e-07 deg
node 149.0579243591828 2.6039e-06 deg
peri 25.11990219684233 9.7923e-06 deg
M 118.9114422842798 8.3951e-06 deg
tp 2458673.075249329076
(2019-Jul-08.57524933)
3.6056e-05 TDB
period 1596.758954345254
4.37
9.5137e-06
2.605e-08
d
yr
n .2254566971554056 1.3433e-09 deg/d
Q 2.948649802053916 1.1712e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1980  
   data-arc span      10077 days (27.59 yr)  
   first obs. used      1993-02-15  
   last obs. used      2020-09-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46344  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 22:50:38  

Additional Information
 Earth MOID = 1.41147 au 
 Jupiter MOID = 2.03874 au 
 T_jup = 3.332 
[ 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 13.53   n/a E2021B10  
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 3.32095 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:
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
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

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