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19535 Rowanatkinson (1999 HF3)
Classification: Main-belt Asteroid          SPK-ID: 2019535
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .188497468162893 3.5098e-08  
a 2.610441201277097 1.021e-08 au
q 2.118379644048263 9.5405e-08 au
i 2.359556741740922 3.4986e-06 deg
node 306.8234462080563 9.378e-05 deg
peri 12.93746088844293 9.4342e-05 deg
M 340.9620639519733 1.2238e-05 deg
tp 2459281.967926487918
(2021-Mar-08.46792649)
5.2564e-05 TDB
period 1540.526949017167
4.22
9.0379e-06
2.474e-08
d
yr
n .2336862722392974 1.371e-09 deg/d
Q 3.102502758505931 1.2134e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1810  
   data-arc span      12053 days (33.00 yr)  
   first obs. used      1987-09-16  
   last obs. used      2020-09-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49918  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:57:17  

Additional Information
 Earth MOID = 1.10351 au 
 Jupiter MOID = 2.20731 au 
 T_jup = 3.383 
[ 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 13.98   n/a E2021B10  
diameter diameter 5.073 km 0.514 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.207   0.073 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19535 Rowanatkinson           Discovered 1999 Apr. 24 by J. Broughton at Reedy Creek Observatory.
Rowan S. Atkinson (b. 1955), one of Britain's finest comedy actors of the last two decades, was inspired by the work of Jacques Tati and John Cleese. Whether the comedy is verbal, as in the television series Blackadder, or physical, as in Mr. Bean, Atkinson is always brilliant.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010705/MPCPages.arcLast Updated: 2009-05-11

Alternate Designations
 1999 HF3 = 1987 SL18 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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