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19641 (1999 RV91)
Classification: Main-belt Asteroid          SPK-ID: 2019641
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 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1128249789608588 4.6351e-08  
a 2.728514690423926 1.317e-08 au
q 2.420670077882452 1.2853e-07 au
i 9.120520755931853 5.4261e-06 deg
node 357.5381280182668 2.1142e-05 deg
peri 325.2753358145552 2.8497e-05 deg
M 286.8567022611918 1.9688e-05 deg
tp 2459534.972108313238
(2021-Nov-16.47210831)
9.0081e-05 TDB
period 1646.219991649061
4.51
1.1919e-05
3.263e-08
d
yr
n .2186828017070664 1.5834e-09 deg/d
Q 3.036359302965399 1.4656e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1978  
   data-arc span      17425 days (47.71 yr)  
   first obs. used      1972-10-05  
   last obs. used      2020-06-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46331  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:00:10  

Additional Information
 Earth MOID = 1.41352 au 
 Jupiter MOID = 2.3181 au 
 T_jup = 3.328 
[ 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 13.62   n/a E2021B10  
diameter diameter 4.889 km 0.409 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.323   0.085 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19641 (1999 RV91)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 RV91 = 1972 TQ2 = 1986 WE11 = 1990 RS5 = 1990 SU27 = 1993 FJ58 = 1999 SK27 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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