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27715 (1989 CR1)
Classification: Main-belt Asteroid          SPK-ID: 2027715
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1625559108679455 6.3728e-08  
a 2.33225328602429 1.3195e-08 au
q 1.953131728739852 1.487e-07 au
i 8.524783812408861 5.1551e-06 deg
node 262.261232345987 5.2725e-05 deg
peri 311.1291687435207 5.7625e-05 deg
M 145.4097933797227 2.5941e-05 deg
tp 2456875.023675049075
(2014-Aug-05.52367505)
9.2682e-05 JED
period 1300.954169492086
3.56
1.1041e-05
3.023e-08
d
yr
n .2767199709583543 2.3484e-09 deg/d
Q 2.711374843308727 1.534e-08 au
  Orbit Determination Parameters
   # obs. used (total)      845  
   data-arc span      9796 days (26.82 yr)  
   first obs. used      1989-02-04  
   last obs. used      2015-12-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5413  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 14:04:41  

Additional Information
 Earth MOID = .95698 au 
 Jupiter MOID = 2.30859 au 
 T_jup = 3.538 
[ 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 14.6 mag n/a MPO351018  

27715 (1989 CR1)          Discovered 1989-Feb-05 by Oshima, Y. at Gekko
Reference: 20010902/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1989 CR1 = 1998 WW12 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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