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 ]  
66064 (1998 RW4)
Classification: Inner Main-belt Asteroid          SPK-ID: 2066064
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08820606690082623 4.6056e-08  
a 1.962018939914335 4.9718e-09 au
q 1.788956966039563 8.9985e-08 au
i 22.57605871109672 5.3048e-06 deg
node 177.8549612655471 8.3857e-06 deg
peri 175.4646526102439 2.5649e-05 deg
M 112.2678720619751 2.2164e-05 deg
tp 2459083.455404562075
(2020-Aug-21.95540456)
6.2043e-05 TDB
period 1003.813934367988
2.75
3.8155e-06
1.045e-08
d
yr
n .3586322003257107 1.3632e-09 deg/d
Q 2.135080913789107 5.4103e-09 au
  Orbit Determination Parameters
   # obs. used (total)      982  
   data-arc span      12167 days (33.31 yr)  
   first obs. used      1987-09-24  
   last obs. used      2021-01-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5455  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 22:30:45  

Additional Information
 Earth MOID = .78435 au 
 Jupiter MOID = 3.16282 au 
 T_jup = 3.782 
[ 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 16.36   n/a E2021B10  
rotation period rot_per 22.7682 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.]

66064 (1998 RW4)          Discovered 1998-Sep-14 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 RW4 = 2000 GR156 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jul-23 18:35 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin