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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05447863852748534 4.4067e-08  
a 3.025980277889243 2.0048e-08 au
q 2.861128992138815 1.3414e-07 au
i 10.203453118646 5.903e-06 deg
node .3219354390433538 2.3301e-05 deg
peri 236.6919321941321 5.8261e-05 deg
M 231.4581603831019 5.5578e-05 deg
tp 2459286.998474971588
(2021-Mar-13.49847497)
0.00029799 TDB
period 1922.638198786776
5.26
1.9107e-05
5.231e-08
d
yr
n .1872427169225949 1.8608e-09 deg/d
Q 3.190831563639671 2.1141e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1654  
   data-arc span      16563 days (45.35 yr)  
   first obs. used      1974-07-24  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52475  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 01:06:56  

Additional Information
 Earth MOID = 1.86638 au 
 Jupiter MOID = 1.83113 au 
 T_jup = 3.218 
[ 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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