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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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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1264356224167934 2.1212e-08  
a 3.191391740096943 1.3523e-08 au
q 2.787886139061972 7.4212e-08 au
i 2.664368072044616 2.4948e-07 deg
node 95.56073815902182 1.7273e-05 deg
peri 4.174421610617582 1.6121e-05 deg
M 287.0838699682017 7.1537e-06 deg
tp 2459818.283621928393
(2022-Aug-26.78362193)
4.2578e-05 TDB
period 2082.421321976413
5.70
1.3236e-05
3.624e-08
d
yr
n .1728756789996398 1.0988e-09 deg/d
Q 3.594897341131913 1.5233e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3003  
   data-arc span      30457 days (83.39 yr)  
   first obs. used      1938-02-06  
   last obs. used      2021-06-27  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44854  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 12:39:40  

Additional Information
 Earth MOID = 1.80497 au 
 Jupiter MOID = 1.55539 au 
 T_jup = 3.182 
[ show covariance matrix ]

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 11.35   n/a E2021B10 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. 2020-October); 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

[ show close-approach data ]
Alternate Designations
 1938 DS = 1949 DF = 1953 VE2 = 1955 DF = 1966 FK 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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