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18327 (1985 CX1)
Classification: Main-belt Asteroid          SPK-ID: 2018327
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07861500238588026 6.1445e-08  
a 2.229936465342802 9.8202e-09 au
q 2.054630004799516 1.4011e-07 au
i 2.571595383656511 5.4393e-06 deg
node 220.0030550752792 0.0001131 deg
peri 330.9555496598769 0.00011671 deg
M 58.06258776887857 2.6359e-05 deg
tp 2457204.330697415980
(2015-Jun-30.83069742)
8.9014e-05 JED
period 1216.29006980119
3.33
8.0344e-06
2.2e-08
d
yr
n .2959820267700155 1.9552e-09 deg/d
Q 2.405242925886088 1.0592e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1085  
   data-arc span      15738 days (43.09 yr)  
   first obs. used      1972-04-19  
   last obs. used      2015-05-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53175  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 16:31:21  

Additional Information
 Earth MOID = 1.05435 au 
 Jupiter MOID = 2.55554 au 
 T_jup = 3.637 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.9 mag n/a MPO337413  
rotation period rot_per 9.4432 h n/a LCDB (Rev. 2015-December); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

18327 (1985 CX1)          Discovered 1985-Feb-12 by Debehogne, H. at La Silla
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1985 CX1 = 1972 HG1 = 1993 RY15 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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