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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0842841768205647 5.9169e-08  
a 1.948952769242914 7.3592e-09 au
q 1.784686889425115 1.1429e-07 au
i 24.42395787694076 9.2819e-06 deg
node 200.0862625302843 1.1927e-05 deg
peri 141.9573898957463 5.0465e-05 deg
M 297.1064055337923 5.2203e-05 deg
tp 2457774.121823838596
(2017-Jan-20.62182384)
0.00014455 JED
period 993.8032181556682
2.72
5.6288e-06
1.541e-08
d
yr
n .3622447517005424 2.0517e-09 deg/d
Q 2.113218649060713 7.9794e-09 au
  Orbit Determination Parameters
   # obs. used (total)      729  
   data-arc span      15539 days (42.54 yr)  
   first obs. used      1973-09-29  
   last obs. used      2016-04-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .47475  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 12:37:24  

Additional Information
 Earth MOID = .805726 au 
 Jupiter MOID = 3.13519 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 MPO350816  
rotation period rot_per 12. h n/a LCDB (Rev. 2016-February); 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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