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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02599720691979378 3.3429e-08  
a 2.433399850155682 9.1434e-09 au
q 2.37013825073259 8.2506e-08 au
i 11.64158492464227 4.0915e-06 deg
node 166.8160937543192 1.6698e-05 deg
peri 52.99741978160311 7.4919e-05 deg
M 346.5405670554741 7.3172e-05 deg
tp 2459252.337363491359
(2021-Feb-06.83736349)
0.00028183 TDB
period 1386.496068133317
3.80
7.8146e-06
2.14e-08
d
yr
n .2596473284519871 1.4634e-09 deg/d
Q 2.496661449578774 9.3811e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1618  
   data-arc span      23745 days (65.01 yr)  
   first obs. used      1956-03-16  
   last obs. used      2021-03-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52511  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 03:04:49  

Additional Information
 Earth MOID = 1.38148 au 
 Jupiter MOID = 2.4741 au 
 T_jup = 3.477 
[ 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 14.46   n/a E2021B10  
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. 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 0.262   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

Alternate Designations
 1999 RK40 = 1998 HM122 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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