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JPL Small-Body Database Browser
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19023 Varela (2000 SH111)
Classification: Main-belt Asteroid          SPK-ID: 2019023
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 .151334307690068 4.7933e-08  
a 2.658845618241772 1.161e-08 au
q 2.256471057350383 1.2949e-07 au
i 2.575475342425102 5.8648e-06 deg
node 155.8318697002453 8.4583e-05 deg
peri 333.7655752704172 8.6372e-05 deg
M 95.89323506066376 1.6627e-05 deg
tp 2458578.683485747814
(2019-Apr-05.18348575)
7.235e-05 TDB
period 1583.573075146764
4.34
1.0372e-05
2.84e-08
d
yr
n .2273339990746152 1.489e-09 deg/d
Q 3.061220179133162 1.3367e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1249  
   data-arc span      11286 days (30.90 yr)  
   first obs. used      1989-03-05  
   last obs. used      2020-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52717  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 22:39:58  

Additional Information
 Earth MOID = 1.27162 au 
 Jupiter MOID = 1.98927 au 
 T_jup = 3.369 
[ 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 14.5   n/a MPO319323  
diameter diameter 6.410 km 0.025 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 7.44 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:
[Chang, C.-K.; Lin, H.-W.; Ip, W.-H.; Prince, T.A.; et al. (2016) Astrophys. J. Sup. Ser. 227, A20.]
geometric albedo albedo 0.068   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19023 Varela           Discovered 2000 Sept. 24 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Elizabeth Van Cortlandt Varela (b. 1986) was awarded fourth place in the 2003 Intel International Science and Engineering Fair for her engineering project. She attends the West Potomac High School, Alexandria, Virginia, U.S.A.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20040830/MPCPages.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 2000 SH111 = 1989 EV9 = 1992 YU4 = 1998 HR55 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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