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 ]  
344217 (2001 RJ57)
Classification: Main-belt Asteroid          SPK-ID: 2344217
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1608366988026341 5.9214e-08  
a 2.416436797925645 2.079e-08 au
q 2.027785080482076 1.4903e-07 au
i 2.240409864838382 5.9479e-06 deg
node 69.07230301773049 0.00016131 deg
peri 321.1144369303958 0.0001628 deg
M 325.1610909196338 2.7619e-05 deg
tp 2459133.277239251192
(2020-Oct-10.77723925)
0.00010642 TDB
period 1372.023619343673
3.76
1.7706e-05
4.848e-08
d
yr
n .2623861535067531 3.3862e-09 deg/d
Q 2.805088515369214 2.4134e-08 au
  Orbit Determination Parameters
   # obs. used (total)      157  
   data-arc span      6501 days (17.80 yr)  
   first obs. used      2001-09-12  
   last obs. used      2019-07-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59554  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 06:29:23  

Additional Information
 Earth MOID = 1.03377 au 
 Jupiter MOID = 2.63044 au 
 T_jup = 3.497 
[ 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 17.4   n/a MPO437458  

344217 (2001 RJ57)          Discovered 2001-Sep-12 by LINEAR at Socorro
Reference: 20121128/Numbers.arcLast Updated: 2012-12-03

Alternate Designations
 2001 RJ57 = 2005 UB348 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jul-05 10:30 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin