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20522 Yogeshwar (1999 RK40)
Classification: Main-belt Asteroid          SPK-ID: 2020522
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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0261356240272458 3.4138e-08  
a 2.433826653175944 9.5123e-09 au
q 2.370217074821048 8.449e-08 au
i 11.64067694494372 4.2134e-06 deg
node 166.8157806966111 1.6959e-05 deg
peri 52.7577000662232 7.7065e-05 deg
M 294.8590788174804 7.5622e-05 deg
tp 2459251.448316256147
(2021-Feb-05.94831626)
0.0002915 TDB
period 1386.860858155254
3.80
8.1305e-06
2.226e-08
d
yr
n .2595790326643564 1.5218e-09 deg/d
Q 2.497436231530841 9.7609e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1556  
   data-arc span      23417 days (64.11 yr)  
   first obs. used      1956-03-16  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52671  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 05:13:22  

Additional Information
 Earth MOID = 1.38225 au 
 Jupiter MOID = 2.4743 au 
 T_jup = 3.477 
[ 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 MPO459008  
diameter diameter 3.581 km 0.103 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 9.611 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.262   0.058 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20522 Yogeshwar           Discovered 1999 Sept. 13 by A. Knöfel at Drebach.
Ranga Yogeshwar (b. 1959), a physicist and scientific journalist, works as editor and presenter of excellent German public science television programs. His work is a most valuable contribution to the scientific education of the television audience.
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

[ show close-approach data ]
Alternate Designations
 1999 RK40 = 1998 HM122 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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