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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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08419906206185446 7.1911e-08  
a 1.948994739749908 8.3847e-09 AU
q 1.784891210699478 1.3754e-07 AU
i 24.41685321324178 9.9719e-06 deg
node 200.1064863957577 1.2624e-05 deg
peri 141.637169661258 5.4894e-05 deg
M 80.10812825184283 5.7243e-05 deg
tp 2456779.349201898050
(2014-May-01.84920190)
0.00015727 JED
period 993.8353205109433
2.72
6.4133e-06
1.756e-08
d
yr
n .3622330506576476 2.3375e-09 deg/d
Q 2.113098268800338 9.0907e-09 AU
  Orbit Determination Parameters
   # obs. used (total)      624  
   data-arc span      15058 days (41.23 yr)  
   first obs. used      1973-09-29  
   last obs. used      2014-12-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49893  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Feb-04 13:00:53  

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 15.0 mag n/a MPO324324  
rotation period rot_per 12. h n/a LCDB (Rev. 2015-Feb); Warner et al., 2009 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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