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JPL Small-Body Database Browser
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1674 Groeneveld (1938 DS)
Classification: Outer Main-belt Asteroid          SPK-ID: 2001674
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1226380262305983 3.1462e-08  
a 3.205759333260775 1.5076e-08 au
q 2.812611336059355 1.022e-07 au
i 2.664740190672144 3.6097e-06 deg
node 95.597540157585 8.8367e-05 deg
peri 2.033212853613232 8.9939e-05 deg
M 152.3247874546462 1.6999e-05 deg
tp 2457713.419811822734
(2016-Nov-20.91981182)		 9.8956e-05 TDB
period 2096.499677302355
5.74		 1.4789e-05
4.049e-08		 d
yr
n .1717147891304355 1.2113e-09 deg/d
Q 3.598907330462196 1.6925e-08 au
   Orbit Determination Parameters
   # obs. used (total)      2468  
   data-arc span      29836 days (81.69 yr)  
   first obs. used      1938-02-06  
   last obs. used      2019-10-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47513  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 02:07:27  

Additional Information
 Earth MOID = 1.82957 au 
 Jupiter MOID = 1.55896 au 
 T_jup = 3.179 
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[ 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 11.3   n/a MPO492770 IRAS observations used: 3
diameter diameter 32.386 km 0.393 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 8.02 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Tedesco, E.F. (1979) PhD Dissertation, New. Mex. State Univ. 280pp.]
[Mas, V.; Fornas, G.; Lozano, J.; Rodrigo, O.; et al. (2018) Minor Planet Bull. 45, 76-82.]
geometric albedo albedo 0.063   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
B-V BV 0.790   0.040 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=2.09 deg.
U-B UB 0.530   0.040 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=2.09 deg.

1674 Groeneveld (1938 DS)          Discovered 1938-Feb-07 by Reinmuth, K. at Heidelberg
Provisional designation is associated with an independent discovery Feb. 22 by Y. Vaisala, Turku, which was announced first. A third independent discovery earlier on Feb. 22 was made by G. Kulin, Budapest.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1938 DS = 1949 DF = 1953 VE2 = 1955 DF = 1966 FK 
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