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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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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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .161084764920664 3.0767e-08  
a 2.248846364067157 6.0749e-09 au
q 1.886591476168709 7.0486e-08 au
i 4.882961744212713 3.5148e-06 deg
node 150.0389837522945 3.5995e-05 deg
peri 221.5308280052376 3.737e-05 deg
M 104.2567346437283 1.0205e-05 deg
tp 2458843.769925645798
(2019-Dec-26.26992565)
3.468e-05 TDB
period 1231.794063053729
3.37
4.9912e-06
1.367e-08
d
yr
n .292256644838446 1.1842e-09 deg/d
Q 2.611101251965604 7.0534e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1643  
   data-arc span      15095 days (41.33 yr)  
   first obs. used      1979-11-16  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4867  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 23:00:13  

Additional Information
 Earth MOID = .887782 au 
 Jupiter MOID = 2.85505 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. 2020-October); 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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