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21919 Luga (1999 VV47)
Classification: Main-belt Asteroid          SPK-ID: 2021919
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05702817034374737 4.7648e-08  
a 3.067446148692136 2.2827e-08 au
q 2.892515307204249 1.4176e-07 au
i 8.282181394518952 5.0246e-06 deg
node 288.5710986617184 3.9292e-05 deg
peri 352.6773351636133 7.3412e-05 deg
M 74.33439863926937 6.0001e-05 deg
tp 2458795.317034091667
(2019-Nov-07.81703409)
0.00032887 TDB
period 1962.292967954973
5.37
2.1904e-05
5.997e-08
d
yr
n .1834588442597225 2.0478e-09 deg/d
Q 3.242376990180023 2.4129e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1161  
   data-arc span      9120 days (24.97 yr)  
   first obs. used      1995-12-19  
   last obs. used      2020-12-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48864  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:55:26  

Additional Information
 Earth MOID = 1.87436 au 
 Jupiter MOID = 1.89098 au 
 T_jup = 3.213 
[ 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 14.05   n/a E2021B10  
diameter diameter 6.437 km 1.130 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.117   0.047 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

21919 Luga           Discovered 1999 Nov. 3 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Melissa Pomaikai Akiko Luga (b. 1991) is a finalist in the 2005 Discovery Channel Young Scientist Challenge (DCYSC), a middle school science competition, for her biochemistry, medicine, health, & microbiology project. She attends the Kamehameha Schools, Keaau Campus, Keaau, Hawaii.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20051019/MPCPages.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1999 VV47 = 1998 MN47 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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