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 ]  
66494 (1999 RM57)
Classification: Main-belt Asteroid          SPK-ID: 2066494
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1581495580276411 4.9766e-08  
a 2.763373415777041 1.9537e-08 au
q 2.326347131406569 1.3218e-07 au
i 10.18607751536155 5.2902e-06 deg
node 139.9681685016185 2.7569e-05 deg
peri 178.1447987456915 3.5853e-05 deg
M 239.5823665919766 2.8546e-05 deg
tp 2459761.735813902221
(2022-Jul-01.23581390)
0.00013679 TDB
period 1677.867993968875
4.59
1.7794e-05
4.872e-08
d
yr
n .2145579993742213 2.2754e-09 deg/d
Q 3.200399700147513 2.2627e-08 au
  Orbit Determination Parameters
   # obs. used (total)      582  
   data-arc span      8368 days (22.91 yr)  
   first obs. used      1998-04-24  
   last obs. used      2021-03-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56976  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 07:01:55  

Additional Information
 Earth MOID = 1.31122 au 
 Jupiter MOID = 2.1168 au 
 T_jup = 3.299 
[ 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 15.16   n/a E2021B10  

66494 (1999 RM57)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 RM57 = 2002 CJ213 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jun-19 19:58 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin