Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
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 ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2596832920017058 2.7776e-08  
a 2.573157462075222 9.4754e-09 au
q 1.904951461484774 7.0156e-08 au
i 3.890757587774854 3.353e-06 deg
node 276.2310441595169 7.422e-05 deg
peri 11.7846357681147 7.5005e-05 deg
M 75.34807833082458 1.2324e-05 deg
tp 2458884.950387183782
(2020-Feb-05.45038718)
5.1172e-05 TDB
period 1507.64111216047
4.13
8.3276e-06
2.28e-08
d
yr
n .2387836183931832 1.319e-09 deg/d
Q 3.24136346266567 1.1936e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1655  
   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      .47938  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:48:01  

Additional Information
 Earth MOID = .886844 au 
 Jupiter MOID = 1.94574 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

[ show close-approach data ]
Alternate Designations
 1991 RV2 = 1999 NE7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jun-20 11:06 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin