Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
27657 Berkhey (1974 PC)
Classification: Mars-crossing Asteroid          SPK-ID: 2027657
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2923242230125507 4.0634e-08  
a 2.254987621217739 7.4319e-09 au
q 1.595800116942344 9.2018e-08 au
i 23.42641450359504 5.8331e-06 deg
node 139.5980617269136 9.247e-06 deg
peri 212.7089829626368 1.2989e-05 deg
M 57.18910562541402 7.3152e-06 deg
tp 2458404.016776725174
(2018-Oct-12.51677673)
2.5188e-05 TDB
period 1236.843269454875
3.39
6.1145e-06
1.674e-08
d
yr
n .2910635558203474 1.4389e-09 deg/d
Q 2.914175125493135 9.6045e-09 au
  Orbit Determination Parameters
   # obs. used (total)      916  
   data-arc span      16238 days (44.46 yr)  
   first obs. used      1974-08-12  
   last obs. used      2019-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55944  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 01:04:47  

Additional Information
 Earth MOID = .616439 au 
 Jupiter MOID = 2.55779 au 
 T_jup = 3.463 
[ 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 15.2   n/a MPO452557  

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 | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2019-Dec-15 03:05 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin