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 ]  
186945 (2004 RX4)
Classification: Main-belt Asteroid          SPK-ID: 2186945
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2026545365255859 6.2571e-08  
a 3.080169995450481 2.7968e-08 au
q 2.455959572602448 2.0549e-07 au
i 9.019481024948574 4.7881e-06 deg
node 76.41706495486501 3.7688e-05 deg
peri 287.7916257350002 3.9616e-05 deg
M 357.4748357414726 1.193e-05 deg
tp 2459214.349930329640
(2020-Dec-30.84993033)
6.5498e-05 TDB
period 1974.51508424962
5.41
2.6893e-05
7.363e-08
d
yr
n .1823232462854604 2.4832e-09 deg/d
Q 3.704380418298514 3.3635e-08 au
  Orbit Determination Parameters
   # obs. used (total)      397  
   data-arc span      7675 days (21.01 yr)  
   first obs. used      1999-10-10  
   last obs. used      2020-10-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54977  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:53:21  

Additional Information
 Earth MOID = 1.47162 au 
 Jupiter MOID = 1.84639 au 
 T_jup = 3.178 
[ 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 15.51   n/a MPCxxxxx  

186945 (2004 RX4)          Discovered 2004-Sep-04 by NEAT at Palomar
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22

[ show close-approach data ]
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-25 03:49 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin