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JPL Small-Body Database Browser
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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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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2141457457496433 5.4711e-08  
a 2.9191709104858 1.1782e-08 au
q 2.294042878889153 1.5925e-07 au
i 7.512289946078603 6.041e-06 deg
node 31.80395257051932 2.9636e-05 deg
peri 307.9402792601802 3.2095e-05 deg
M 67.13649687880115 1.246e-05 deg
tp 2458260.762187231913
(2018-May-22.26218723)
6.2704e-05 TDB
period 1821.745522667126
4.99
1.1029e-05
3.02e-08
d
yr
n .1976126717594135 1.1964e-09 deg/d
Q 3.544298942082447 1.4305e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1346  
   data-arc span      16880 days (46.21 yr)  
   first obs. used      1973-09-19  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48559  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 23:19:10  

Additional Information
 Earth MOID = 1.29435 au 
 Jupiter MOID = 1.90179 au 
 T_jup = 3.233 
[ 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 14.1   n/a MPO332930  
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. 2019-January); 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

[ show close-approach data ]
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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