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JPL Small-Body Database Browser
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19663 Rykerwatts (1999 RU133)
Classification: Main-belt Asteroid          SPK-ID: 2019663
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05991247965174399 3.5974e-08  
a 2.725349317130933 1.5523e-08 au
q 2.562066881624432 1.0032e-07 au
i 8.421080171101961 4.3443e-06 deg
node 209.1142741853786 3.011e-05 deg
peri 244.9147796455972 5.0424e-05 deg
M 108.7753987072061 4.1983e-05 deg
tp 2458503.953559863285
(2019-Jan-20.45355986)
0.00019061 TDB
period 1643.356131751646
4.50
1.404e-05
3.844e-08
d
yr
n .2190638979855678 1.8716e-09 deg/d
Q 2.888631752637435 1.6453e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1116  
   data-arc span      15445 days (42.29 yr)  
   first obs. used      1977-10-18  
   last obs. used      2020-01-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53211  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 22:53:36  

Additional Information
 Earth MOID = 1.59176 au 
 Jupiter MOID = 2.25585 au 
 T_jup = 3.339 
[ 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 14.3   n/a MPO425999  
diameter diameter 4.700 km 0.107 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.777 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.201   0.025 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19663 Rykerwatts           Discovered 1999 Sept. 9 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Ryker H. Watts (b. 1989) is a finalist in the 2003 Discovery Channel Young Scientist Challenge, a middle school science competition, for his biochemistry, medicine, health and microbiology project. He attends the Mountain Ridge Junior High School, Highland, Utah.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20031010/MPCPages.arcLast Updated: 2003-10-10

[ show close-approach data ]
Alternate Designations
 1999 RU133 = 1977 UH4 = 1997 GU25 = 1998 KR40 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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