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9912 Donizetti (2078 T-3)
Classification: Main-belt Asteroid          SPK-ID: 2009912
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 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1490614177263498 2.9488e-08  
a 2.563168170970881 9.2469e-09 au
q 2.181098689534906 7.9672e-08 au
i 7.260577127173012 8.3202e-07 deg
node 344.1584126933271 7.041e-06 deg
peri 227.7022711482452 1.3524e-05 deg
M 349.1305283996408 1.5028e-05 deg
tp 2459245.755358585025
(2021-Jan-31.25535859)
6.2699e-05 TDB
period 1498.870385757373
4.10
8.111e-06
2.221e-08
d
yr
n .2401808744910878 1.2997e-09 deg/d
Q 2.945237652406855 1.0625e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2565  
   data-arc span      15856 days (43.41 yr)  
   first obs. used      1977-10-07  
   last obs. used      2021-03-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45316  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 21:42:17  

Additional Information
 Earth MOID = 1.18297 au 
 Jupiter MOID = 2.05417 au 
 T_jup = 3.407 
[ show covariance matrix ]

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 12.99   n/a E2021B10  
diameter diameter 6.922 km 0.310 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 6.228 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.255   0.043 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

9912 Donizetti           Discovered 1977 Oct. 16 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
The Italian composer Gaetano Donizetti (1797-1848) wrote symphonies, church and chamber music. After 1818 he composed 74 operas. He is still much esteemed today.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19990402/MPCPages.arcLast Updated: 2010-06-11

[ show close-approach data ]
Alternate Designations
 2078 T-3 = 1979 BH1 = 1989 SJ10 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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