Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Near-Earth Object (NEO) Program
Search JPL
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
27657 Berkhey (1974 PC)
Classification: Mars-crossing Asteroid          SPK-ID: 2027657
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2932344527161219 7.9208e-08  
a 2.254253986297859 1.3949e-08 AU
q 1.59322905234267 1.7883e-07 AU
i 23.4513836417624 9.7745e-06 deg
node 139.6845435756392 2.0596e-05 deg
peri 212.4641718003602 2.6375e-05 deg
M 311.6227648940836 2.2496e-05 deg
tp 2457166.627388927168
(2015-May-24.12738893)
7.8379e-05 JED
period 1236.239728931228
3.38
1.1474e-05
3.141e-08
d
yr
n .2912056549996435 2.7028e-09 deg/d
Q 2.915278920253048 1.8039e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      413  
   data-arc span      14569 days (39.89 yr)  
   first obs. used      1974-08-12  
   last obs. used      2014-07-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .69709  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-09 14:56:57  

Additional Information
 Earth MOID = .614887 AU 
 T_jup = 3.463 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.1 mag n/a MPO263583  

27657 Berkhey           Discovered 1974 Aug. 12 by T. Gehrels at Palomar.
Joannes Le Francq van Berkhey (1729-1812) was a famous Dutch physician, biologist and naturalist noted for his Natural History of Holland. He was considered an excellent poet for his time. The name was suggested by C. E. Koppeschaar.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20100130/MPCPages.arcLast Updated: 2013-03-29

[ show close-approach data ]
Alternate Designations
 1974 PC = 1991 PF1 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Oct-30 23:37 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin