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9698 Idzerda (2205 T-1)
Classification: Main-belt Asteroid          SPK-ID: 2009698
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05208660186770622 3.7045e-08  
a 2.366190946386959 7.717e-09 au
q 2.24294410061953 8.9081e-08 au
i 7.364796873786846 4.0213e-06 deg
node 7.525569869624926 2.7203e-05 deg
peri 185.9638414959282 4.4326e-05 deg
M 228.0153338816993 3.6397e-05 deg
tp 2459687.909608881350
(2022-Apr-18.40960888)
0.00013521 TDB
period 1329.453370287808
3.64
6.5037e-06
1.781e-08
d
yr
n .2707879855327797 1.3247e-09 deg/d
Q 2.489437792154387 8.1189e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1923  
   data-arc span      18198 days (49.82 yr)  
   first obs. used      1971-03-24  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44789  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 01:50:16  

Additional Information
 Earth MOID = 1.24157 au 
 Jupiter MOID = 2.46673 au 
 T_jup = 3.535 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.07   n/a E2021B10  
diameter diameter 4.024 km 0.127 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 5.47439 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:
[Erasmus, N.; Navarro-Meza, S.; McNeill, A.; Trilling, D.E.; et al. (2020) Ap. J. Suppl. Ser. 247, A13.]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.228   0.021 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

9698 Idzerda           Discovered 1971 Mar. 25 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
Hanso Henricus Schotanus Steringa Idzerda (1885-1944) invented the vacuum triode for amplifying audio and radio signals. In November 1919 he started the first radio broadcasting station in the world from The Hague.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20001111/MPCPages.arcLast Updated: 2013-03-29

Alternate Designations
 2205 T-1 = 1980 XQ1 = 1991 XM6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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