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19145 (1989 YC)
Classification: Main-belt Asteroid          SPK-ID: 2019145
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 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2714692935549861 1.3761e-08  
a 2.400387827256909 9.5236e-09 au
q 1.748756239533488 3.1283e-08 au
i 10.40788567480895 9.7047e-07 deg
node 100.6086021747768 5.9334e-06 deg
peri 280.5822740008487 6.532e-06 deg
M 167.4575701619819 4.3681e-06 deg
tp 2458568.637131245384
(2019-Mar-26.13713125)
1.3812e-05 TDB
period 1358.377722378446
3.72
8.0841e-06
2.213e-08
d
yr
n .2650220141785449 1.5772e-09 deg/d
Q 3.052019414980329 1.2109e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1491  
   data-arc span      11395 days (31.20 yr)  
   first obs. used      1989-12-25  
   last obs. used      2021-03-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49447  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:46:51  

Additional Information
 Earth MOID = .786818 au 
 Jupiter MOID = 2.48746 au 
 T_jup = 3.454 
[ 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 14.14   n/a E2021B10  
diameter diameter 7.936 km 0.233 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 5.899 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.]
geometric albedo albedo 0.044   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  

19145 (1989 YC)          Discovered 1989-Dec-25 by Baur, J. M. at Chions
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1989 YC = 1999 LG8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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