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19178 Walterbothe (1991 RV2)
Classification: Main-belt Asteroid          SPK-ID: 2019178
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .259561605010651 2.7751e-08  
a 2.573496571288058 9.452e-09 au
q 1.905515670755123 7.0092e-08 au
i 3.89051295773292 3.351e-06 deg
node 276.234057065903 7.422e-05 deg
peri 11.80828827639892 7.5005e-05 deg
M 122.1256786319793 1.24e-05 deg
tp 2458884.949743115220
(2020-Feb-05.44974312)
5.1199e-05 TDB
period 1507.939153676875
4.13
8.3076e-06
2.274e-08
d
yr
n .2387364232317968 1.3153e-09 deg/d
Q 3.241477471820994 1.1905e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1659  
   data-arc span      15607 days (42.73 yr)  
   first obs. used      1978-06-09  
   last obs. used      2021-03-02  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48134  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 18:07:42  

Additional Information
 Earth MOID = .889022 au 
 Jupiter MOID = 1.94474 au 
 T_jup = 3.377 
[ 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 14.42   n/a MPCxxxxx  
rotation period rot_per 297.263 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.]

19178 Walterbothe           Discovered 1991 Sept. 9 by F. Borngen and L. D. Schmadel at Tautenburg.
A professor at Berlin, Giessen and Heidelberg, Walter Bothe (1891-1957) showed, together with W. Kohlhoerster,the particle structure of cosmic radiation. He investigated nuclear reactions and nuclear \gamma -rays and discovered artificial nuclear exitation. He shared the Nobel Prize for physics in 1954.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010509/MPCPages.arcLast Updated: 2009-05-11

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Alternate Designations
 1991 RV2 = 1999 NE7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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