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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1623792595589351 1.0259e-07  
a 2.332052051092889 1.724e-08 AU
q 1.95337516578353 2.4659e-07 AU
i 8.525525584789795 6.6589e-06 deg
node 262.2720558938706 5.5188e-05 deg
peri 311.0866378913695 6.02e-05 deg
M 34.76950596933509 2.7843e-05 deg
tp 2456874.867556866207
(2014-Aug-05.36755687)
0.00010005 JED
period 1300.785796843192
3.56
1.4425e-05
3.949e-08
d
yr
n .2767557893649092 3.069e-09 deg/d
Q 2.710728936402248 2.004e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      680  
   data-arc span      9238 days (25.29 yr)  
   first obs. used      1989-02-04  
   last obs. used      2014-05-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .57376  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-09 14:57:04  

Additional Information
 Earth MOID = .959283 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 14.5 mag n/a MPO302228  

27715 (1989 CR1)          Discovered 1989-Feb-05 by Oshima, Y. at Gekko (888)
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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