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11771 Maestlin (4136 T-2)
Classification: Main-belt Asteroid          SPK-ID: 2011771
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 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2146088456964891 5.0651e-08  
a 2.918645095944018 1.1565e-08 au
q 2.292278040905753 1.4677e-07 au
i 7.512491222155159 4.9258e-06 deg
node 31.77663551449061 2.9082e-05 deg
peri 307.9943874923625 3.0828e-05 deg
M 185.6394048917434 1.1459e-05 deg
tp 2460082.596708296490
(2023-May-18.09670830)
6.0066e-05 TDB
period 1821.253333011244
4.99
1.0825e-05
2.964e-08
d
yr
n .1976660761437176 1.1748e-09 deg/d
Q 3.545012150982282 1.4047e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1455  
   data-arc span      17294 days (47.35 yr)  
   first obs. used      1973-09-19  
   last obs. used      2021-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47894  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 02:02:24  

Additional Information
 Earth MOID = 1.29167 au 
 Jupiter MOID = 1.90518 au 
 T_jup = 3.233 
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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 14.13   n/a E2021B10  
diameter diameter 7.602 km 0.251 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 4.098 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.084   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

11771 Maestlin           Discovered 1973 Sept. 29 by C. J. van Houten and I. van Houten-Groeneveld on plates taken at Palomar by T. Gehrels.
Michael Maestlin (1550-1631), professor of astronomy at Tübingen, was an influential teacher of Johannes Kepler and one of the earliest adherents to Copernicanism. Maestlin also made astrometric measurements of comets in 1577 and 1580. The name was suggested by the object's identifier, D. W. E. Green.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20020328/MPCPages.arcLast Updated: 2003-10-02

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Alternate Designations
 4136 T-2 = 1987 KS1 = 1988 RD4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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