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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1229546982191011 4.1546e-08  
a 3.198467445585089 1.9355e-08 AU
q 2.805200846049555 1.3258e-07 AU
i 2.662020901917228 4.9308e-06 deg
node 95.67828525093051 0.00011572 deg
peri .009795129652083219 0.00011771 deg
M 238.8160838655663 2.3447e-05 deg
tp 2457703.821366360625
(2016-Nov-11.32136636)
0.00013759 JED
period 2089.350633040659
5.72
1.8965e-05
5.192e-08
d
yr
n .1723023384907336 1.564e-09 deg/d
Q 3.591734045120623 2.1735e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1527  
   data-arc span      28308 days (77.50 yr)  
   first obs. used      1938-02-06  
   last obs. used      2015-08-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53771  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 14:02:19  

Additional Information
 Earth MOID = 1.82176 AU 
 T_jup = 3.181 
[ 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-July); Warner et al., 2009 [Result based on less than full coverage, so that the period may be wrong by 30 percent or so.]
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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