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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 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08419903758889642 8.854e-08  
a 1.94899474269878 9.4947e-09 AU
q 1.784891261097724 1.7284e-07 AU
i 24.41686254383045 1.2765e-05 deg
node 200.1064814665819 1.3259e-05 deg
peri 141.6371749863692 5.6085e-05 deg
M 80.10812391694967 5.7622e-05 deg
tp 2456779.349213363280
(2014-May-01.84921336)
0.00015835 JED
period 993.8353227664853
2.72
7.2624e-06
1.988e-08
d
yr
n .3622330498355478 2.647e-09 deg/d
Q 2.113098224299836 1.0294e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      541  
   data-arc span      14950 days (40.93 yr)  
   first obs. used      1973-09-29  
   last obs. used      2014-09-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52948  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Sep-12 13:40:20  

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 ]
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