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JPL Small-Body Database Browser
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11433 Gemmafrisius (3474 T-3)
Classification: Main-belt Asteroid          SPK-ID: 2011433
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1583278964779122 3.3004e-08  
a 2.420838386504509 7.9105e-09 au
q 2.037552137056267 8.0901e-08 au
i 3.211038559721045 3.379e-06 deg
node 59.63917522006325 6.0375e-05 deg
peri 141.9204147981732 6.1114e-05 deg
M 293.716902081464 1.0517e-05 deg
tp 2459253.807133340642
(2021-Feb-08.30713334)
4.065e-05 TDB
period 1375.774079158265
3.77
6.7433e-06
1.846e-08
d
yr
n .2616708698424217 1.2826e-09 deg/d
Q 2.804124635952751 9.1629e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1728  
   data-arc span      24401 days (66.81 yr)  
   first obs. used      1953-03-16  
   last obs. used      2020-01-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5228  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-28 22:28:21  

Additional Information
 Earth MOID = 1.03553 au 
 Jupiter MOID = 2.15306 au 
 T_jup = 3.494 
[ 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 14.5   n/a MPO452332  
diameter diameter 3.390 km 0.152 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.185   0.045 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

11433 Gemmafrisius           Discovered 1977 Oct. 16 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
Gemma Frisius (Gemma Phrysius, Gemma Reyneri, 1508-1555) born in Dokkum, Friesland, studied in Leuven, Belgium, as a geographer, scientist and physician. He devised new globes, described how an accurate clock could be used to determine longitude and improved the astrolabe. Mercator was one of his students.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20090409/MPCPages.arcLast Updated: 2016-03-01

[ show close-approach data ]
Alternate Designations
 3474 T-3 = 1953 FB1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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