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JPL Small-Body Database Browser
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11941 Archinal (1993 KT1)
Classification: Inner Main-belt Asteroid          SPK-ID: 2011941
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05006829778402377 4.4473e-08  
a 1.951384783806861 6.8906e-09 au
q 1.853682269360007 8.648e-08 au
i 25.09958299830363 4.9994e-06 deg
node 77.44997669121801 1.1335e-05 deg
peri 211.5364755861488 4.9473e-05 deg
M 142.845206356031 4.9099e-05 deg
tp 2458205.428257242148
(2018-Mar-27.92825724)
0.00013565 TDB
period 995.6639849596323
2.73
5.2738e-06
1.444e-08
d
yr
n .3615677632596058 1.9151e-09 deg/d
Q 2.049087298253716 7.2356e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1363  
   data-arc span      10830 days (29.65 yr)  
   first obs. used      1990-03-31  
   last obs. used      2019-11-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44685  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-03 22:41:14  

Additional Information
 Earth MOID = .848611 au 
 Jupiter MOID = 3.03454 au 
 T_jup = 3.774 
[ 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 14.2   n/a MPO452339  
diameter diameter 4.847 km 0.075 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 2.717 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Li, B.; Zhao, H.; Han. X.L.; Annable, L.R.; et al. (2013) Minor Planet Bull. 40, 62-63.]
[Warner, B.D. (2014) Minor Planet Bull. 41, 102-112.]
geometric albedo albedo 0.189   0.028 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

11941 Archinal           Discovered 1993 May 23 by C. S. Shoemaker and D. H. Levy at Palomar.
An active amateur astronomer, Brent Archinal (b. 1956) specializes in correcting catalog data for stellar groupings and nonstellar objects. He also has finished the most complete catalog yet assembled of open and globular clusters. Today he works for the U.S. Geological Survey in Flagstaff, Arizona.
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
 1993 KT1 = 1990 FU1 = 1992 BX5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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