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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1262117068053392 2.1236e-08  
a 3.193512279482768 1.3784e-08 au
q 2.790453643985439 7.4441e-08 au
i 2.664481484160185 2.4951e-07 deg
node 95.57187191278133 1.7265e-05 deg
peri 3.863718063650864 1.6109e-05 deg
M 253.5030758167924 7.0381e-06 deg
tp 2459817.145940078223
(2022-Aug-25.64594008)
4.2457e-05 TDB
period 2084.497182719238
5.71
1.3496e-05
3.695e-08
d
yr
n .1727035195751035 1.1182e-09 deg/d
Q 3.596570914980098 1.5524e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2990  
   data-arc span      30289 days (82.93 yr)  
   first obs. used      1938-02-06  
   last obs. used      2021-01-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44631  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 12:46:56  

Additional Information
 Earth MOID = 1.80714 au 
 Jupiter MOID = 1.55466 au 
 T_jup = 3.182 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456734.5 (2014-Mar-18.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1230140949927996 2.0419e-08  
q 2.805115610063514 7.0799e-08 au
tp 2457703.357112752062
(2016-Nov-10.85711275)
3.8833e-05 TDB
node 95.67975890603451 1.7311e-05 deg
peri 359.9398709222731 1.6071e-05 deg
i 2.662160427315281 2.4895e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      2990  
   data-arc span      30289 days (82.93 yr)  
   first obs. used      1938-02-06  
   last obs. used      2021-01-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .44631  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 12:46:56  

Additional Information
 Jupiter MOID = 1.55466 au 
 T_jup = 3.182 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.169479795119172E-16 -1.430192023417514E-15 -3.320537774836485E-13 4.297653867392581E-14 -5.395542519251521E-14 4.753762781480511E-18
q -1.430192023417514E-15 5.012498154003055E-15 1.119954554223286E-12 -1.355049726057976E-13 1.645580461680777E-13 4.437257353280333E-17
tp -3.320537774836485E-13 1.119954554223286E-12 1.508025268401327E-9 2.2207035304303E-10 -1.504800109152439E-12 1.434657790729244E-12
node 4.297653867392581E-14 -1.355049726057976E-13 2.2207035304303E-10 2.996836466356303E-10 -2.604840372480847E-10 -1.536502349217441E-13
peri -5.395542519251521E-14 1.645580461680777E-13 -1.504800109152439E-12 -2.604840372480847E-10 2.582722874768326E-10 3.559811414481485E-13
i 4.753762781480511E-18 4.437257353280333E-17 1.434657790729244E-12 -1.536502349217441E-13 3.559811414481485E-13 6.197664542938076E-14

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

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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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