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 ]  
2049 Grietje (1973 SH)
Classification: Inner Main-belt Asteroid          SPK-ID: 2002049
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 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08419905169966979 8.2596e-08  
a 1.948994741371719 9.0336e-09 AU
q 1.784891232380577 1.6022e-07 AU
i 24.416859736852 1.223e-05 deg
node 200.1064837912294 1.2929e-05 deg
peri 141.6371744651192 5.5908e-05 deg
M 80.10812392635515 5.7619e-05 deg
tp 2456779.349213563185
(2014-May-01.84921356)
0.00015834 JED
period 993.8353217514386
2.72
6.9097e-06
1.892e-08
d
yr
n .3622330502055119 2.5184e-09 deg/d
Q 2.113098250362861 9.7942e-09 AU
  Orbit Determination Parameters
   # obs. used (total)      552  
   data-arc span      14993 days (41.05 yr)  
   first obs. used      1973-09-29  
   last obs. used      2014-10-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5261  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Nov-10 12:48:46  

Additional Information
 Earth MOID = .807442 AU 
 T_jup = 3.780 
[ 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 14.9 mag n/a PDS3 (MPC 17264)  
rotation period rot_per 12. h n/a Asteroid Lightcurve DataBase (Rev. 2014-Mar-01) Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Wisniewski, W.Z.; Michalowski, T.M.; Harris, A.W.; McMillan, R.S. (1997) Icarus 126, 395-449; 1995, Lunar & Planetary Science XXVI, 1511-1512.]

2049 Grietje           Discovered 1973 Sept. 29 by T. Gehrels at Palomar.
Named in honor of Mrs. G. A. M. Haring-Gehrels, an exceptional person.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC 5282Last Updated: 2007-10-23
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Nov-24 05:30 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin