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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 ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.

Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05927235352348939 3.1494e-08  
a 2.72675809100976 1.3559e-08 au
q 2.565136721466394 8.4666e-08 au
i 8.419272619268295 4.2649e-06 deg
node 209.0918704797902 2.5399e-05 deg
peri 244.8466309958544 4.7803e-05 deg
M 195.620904652747 4.2271e-05 deg
tp 2460147.452431476831
0.00019503 TDB
period 1644.630509497309
n .2188941515562886 1.6327e-09 deg/d
Q 2.888379460553125 1.4363e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1375  
   data-arc span      15966 days (43.71 yr)  
   first obs. used      1977-10-18  
   last obs. used      2021-07-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50549  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 10:10:24  

Additional Information
 Earth MOID = 1.59478 au 
 Jupiter MOID = 2.25332 au 
 T_jup = 3.338 
[ 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 14.38   n/a E2021B10  
diameter diameter 4.700 km 0.107 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
rotation period rot_per 3.777 h n/a LCDB (Rev. 2020-October); 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.]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.201   0.025 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  

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

Alternate Designations
 1999 RU133 = 1977 UH4 = 1997 GU25 = 1998 KR40 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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