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1674 Groeneveld (1938 DS)
Classification: Main-belt Asteroid          SPK-ID: 2001674
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1227891665815713 3.6758e-08  
a 3.197511402155791 1.7296e-08 au
q 2.80489164195001 1.2089e-07 au
i 2.661940949780194 4.2851e-06 deg
node 95.67153703986544 0.00011173 deg
peri .150015673833168 0.00011358 deg
M 307.5962316002241 2.1887e-05 deg
tp 2457704.502109642014
(2016-Nov-12.00210964)
0.00012728 JED
period 2088.413921613949
5.72
1.6945e-05
4.639e-08
d
yr
n .1723796208568596 1.3986e-09 deg/d
Q 3.590131162361572 1.942e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1701  
   data-arc span      28420 days (77.81 yr)  
   first obs. used      1938-02-06  
   last obs. used      2015-11-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53794  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 12:40:04  

Additional Information
 Earth MOID = 1.82134 au 
 Jupiter MOID = 1.58129 au 
 T_jup = 3.182 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 11.06 mag n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 3
diameter diameter 27.38 km 1.8 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 3
rotation period rot_per 8.1 h n/a LCDB (Rev. 2015-December); 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.]
geometric albedo albedo 0.0888   0.013 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 3
B-V BV .790 mag .040 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=1; phase=2.09 deg.
U-B UB .530 mag .040 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #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 | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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