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27656 (1974 OU1)
Classification: Main-belt Asteroid          SPK-ID: 2027656
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05441106492916507 4.1937e-08  
a 3.024796362641164 1.8533e-08 au
q 2.860213971355994 1.2969e-07 au
i 10.20548724700449 5.6952e-06 deg
node .3114026036477822 2.2205e-05 deg
peri 237.1245669644613 5.774e-05 deg
M 305.9431446151307 5.5357e-05 deg
tp 2459289.029961253579
(2021-Mar-15.52996125)
0.00029583 TDB
period 1921.509960425155
5.26
1.766e-05
4.835e-08
d
yr
n .1873526588019071 1.7219e-09 deg/d
Q 3.189378753926336 1.9541e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1799  
   data-arc span      16631 days (45.53 yr)  
   first obs. used      1974-07-24  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50959  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 01:08:05  

Additional Information
 Earth MOID = 1.86554 au 
 Jupiter MOID = 1.83221 au 
 T_jup = 3.219 
[ 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 12.8   n/a MPO435955  
diameter diameter 9.808 km 0.103 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.167   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

27656 (1974 OU1)          Discovered 1974-Jul-26 by Cesco, M. R. at El Leoncito
Reference: 20010902/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1974 OU1 = 1974 QK3 = 1975 TS1 = 1999 CY57 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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