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19857 Amandajane (2000 UC11)
Classification: Main-belt Asteroid          SPK-ID: 2019857
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08498185503433213 3.4917e-08  
a 2.300868039885797 8.2601e-09 au
q 2.105336005667094 8.1636e-08 au
i 5.527648333403161 3.5045e-06 deg
node 267.8988055473449 4.1163e-05 deg
peri 116.6449740474333 4.7773e-05 deg
M 299.0641655524691 2.4388e-05 deg
tp 2459416.277549244943
(2021-Jul-20.77754924)
8.6724e-05 TDB
period 1274.782210376821
3.49
6.8647e-06
1.879e-08
d
yr
n .2824011796443138 1.5207e-09 deg/d
Q 2.4964000741045 8.9621e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1852  
   data-arc span      12391 days (33.92 yr)  
   first obs. used      1986-10-09  
   last obs. used      2020-09-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47464  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:08:02  

Additional Information
 Earth MOID = 1.11501 au 
 Jupiter MOID = 2.85536 au 
 T_jup = 3.580 
[ 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 14.43   n/a E2021B10  
diameter diameter 2.992 km 0.509 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 23.2951 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:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.452   0.175 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19857 Amandajane           Discovered 2000 Oct. 19 by L. Robinson at Sunflower Observatory.
Amanda Jennifer Jane Robinson is a student of psychology at the University of Kansas and an empathetic caregiver to those in need of emotional support. She is the daughter of the discoverer.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010309/MPCPages.arcLast Updated: 2009-05-11

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Alternate Designations
 2000 UC11 = 1986 TD8 = 1986 VN5 = 1986 XD2 = 1999 LS19 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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