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 ]  
22645 Rotblat (1998 OT6)
Classification: Main-belt Asteroid          SPK-ID: 2022645
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 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2033618948505294 3.0574e-08  
a 2.379643977928444 6.9951e-09 au
q 1.895715069507265 7.0834e-08 au
i 1.910969201480249 3.5884e-06 deg
node 354.7139792513714 8.9125e-05 deg
peri 276.0682428392984 8.9628e-05 deg
M 69.69146502813288 8.6359e-06 deg
tp 2458940.936572689972
(2020-Apr-01.43657269)
3.2163e-05 TDB
period 1340.807425900567
3.67
5.912e-06
1.619e-08
d
yr
n .2684949330126228 1.1839e-09 deg/d
Q 2.863572886349624 8.4176e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2067  
   data-arc span      11274 days (30.87 yr)  
   first obs. used      1990-03-27  
   last obs. used      2021-02-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5004  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:08:38  

Additional Information
 Earth MOID = .878924 au 
 Jupiter MOID = 2.24604 au 
 T_jup = 3.510 
[ 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 14.88   n/a E2021B10  
rotation period rot_per 6.094 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.]

22645 Rotblat           Discovered 1998 July 26 by the Lowell Observatory Near-Earth Object Search at the Anderson Mesa Station.
Joseph Rotblat (1908-2005) was a Nobel Peace Prize laureate in 1995 for his efforts toward nuclear disarmament. A signatory to the 1955 Russell-Einstein manifesto, he was the guiding spirit of the Pugwash Conferences on Science and World Affairs and helped prevent the use of nuclear weapons during the Cold War.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20091202/MPCPages.arcLast Updated: 2010-04-12

Alternate Designations
 1998 OT6 = 1990 FN4 = 1997 ED36 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Apr-23 03:13 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin