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1674 Groeneveld (1938 DS)
Classification: 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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1254006208473771 3.2088e-08  
a 3.197633574998062 1.6015e-08 au
q 2.796648339450887 1.0548e-07 au
i 2.665085048835166 3.6091e-06 deg
node 95.58613826314338 8.7642e-05 deg
peri 3.342591075308775 8.9081e-05 deg
M 219.5165202742652 1.6318e-05 deg
tp 2459815.512416472514
(2022-Aug-24.01241647)		 9.508e-05 TDB
period 2088.533616215353
5.72		 1.569e-05
4.296e-08		 d
yr
n .1723697417197233 1.295e-09 deg/d
Q 3.598618810545237 1.8023e-08 au
   Orbit Determination Parameters
   # obs. used (total)      2542  
   data-arc span      30080 days (82.35 yr)  
   first obs. used      1938-02-06  
   last obs. used      2020-06-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4726  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:34:55  

Additional Information
 Earth MOID = 1.81352 au 
 Jupiter MOID = 1.55442 au 
 T_jup = 3.181 
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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-August); 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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