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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05976727420942478 3.1557e-08  
a 2.72550359059243 1.375e-08 au
q 2.56260767013472 8.4739e-08 au
i 8.420726930751933 4.3283e-06 deg
node 209.1122092275477 2.5465e-05 deg
peri 244.8706999592437 4.7797e-05 deg
M 152.6482447923707 4.2045e-05 deg
tp 2458503.620195587395
(2019-Jan-20.12019559)
0.00019045 TDB
period 1643.495671566848
4.50
1.2437e-05
3.405e-08
d
yr
n .2190452985232321 1.6576e-09 deg/d
Q 2.88839951105014 1.4572e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1336  
   data-arc span      15590 days (42.68 yr)  
   first obs. used      1977-10-18  
   last obs. used      2020-06-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50712  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:01:13  

Additional Information
 Earth MOID = 1.59197 au 
 Jupiter MOID = 2.25497 au 
 T_jup = 3.338 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457128.5 (2015-Apr-16.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .060487068361057 3.1734e-08  
q 2.562370495393483 8.5465e-08 au
tp 2456866.439254876945
(2014-Jul-27.93925488)
0.00018481 TDB
node 209.1455291521885 2.5482e-05 deg
peri 246.3796127081787 4.7257e-05 deg
i 8.416278076010208 4.3265e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1336  
   data-arc span      15590 days (42.68 yr)  
   first obs. used      1977-10-18  
   last obs. used      2020-06-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50712  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:01:13  

Additional Information
 Jupiter MOID = 2.25497 au 
 T_jup = 3.338 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.007046440971095E-15 -2.681586630418887E-15 7.598384333372035E-13 1.852240018886103E-16 1.500648155403856E-13 1.530046300949647E-16
q -2.681586630418887E-15 7.304309423281032E-15 -1.637053848077167E-12 -1.355323797221864E-15 -3.107793837228236E-13 -2.008837107901609E-16
tp 7.598384333372035E-13 -1.637053848077167E-12 3.415649921313029E-8 1.581342553065636E-11 7.369329251008739E-9 -1.198794635750113E-12
node 1.852240018886103E-16 -1.355323797221864E-15 1.581342553065636E-11 6.49313659186143E-10 -6.387293848056457E-10 -2.285199744400964E-11
peri 1.500648155403856E-13 -3.107793837228236E-13 7.369329251008739E-9 -6.387293848056457E-10 2.233210038068681E-9 2.239564548056246E-11
i 1.530046300949647E-16 -2.008837107901609E-16 -1.198794635750113E-12 -2.285199744400964E-11 2.239564548056246E-11 1.871903402904022E-11

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 14.38   n/a E2021B10  
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. 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] (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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