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11874 Gringauz (1989 XD1)
Classification: Main-belt Asteroid          SPK-ID: 2011874
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1609823958382049 3.4863e-08  
a 2.248582869044602 6.782e-09 au
q 1.886600611545058 8.0743e-08 au
i 4.882748582212693 3.5412e-06 deg
node 150.042135295396 4.0688e-05 deg
peri 221.4983552626621 4.2125e-05 deg
M 45.8407509639169 1.0427e-05 deg
tp 2458843.676552736464
(2019-Dec-26.17655274)
3.5651e-05 TDB
period 1231.577577324426
3.37
5.5719e-06
1.526e-08
d
yr
n .2923080174795743 1.3225e-09 deg/d
Q 2.610565126544147 7.8738e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1441  
   data-arc span      14952 days (40.94 yr)  
   first obs. used      1979-11-16  
   last obs. used      2020-10-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49431  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:56:42  

Additional Information
 Earth MOID = .889287 au 
 Jupiter MOID = 2.8545 au 
 T_jup = 3.607 
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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 15.0   n/a MPO337359  
diameter diameter 3.064 km 0.719 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  
rotation period rot_per 1.02 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 lower-limit; Incomplete or inconclusive result.
Published Reference List:
[Erasmus, N.; McNeill, A.; Mommert, M.; Trilling, D.E.; et al. (2018) Ap. J. Suppl. Series 237, A19.]
[Erasmus, N.; McNeill, A.; Mommert, N.; Trilling, D.E.; et al. (2019) Ap. J. Suppl. Series 242, A15.]
geometric albedo albedo 0.188   0.080 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  

11874 Gringauz           Discovered 1989 Dec. 2 by E. W. Elst at the European Southern Observatory.
Konstantin Gringauz (1918-1993) became involved in ionospheric studies early in his career. He participated in the launching of Sputnik 1 by constructing the beep-beep transmitter. During 1982-1986 he was responsible for designing and implementing plasma experiments aboard VEGA 1 and 2.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010509/MPCPages.arcLast Updated: 2009-05-11

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Alternate Designations
 1989 XD1 = 1979 WS3 = 1982 RA3 
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