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 ]  
101980 (1999 RX54)
Classification: Main-belt Asteroid          SPK-ID: 2101980
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1532555777004442 4.1954e-08  
a 2.188655522452161 8.0193e-09 au
q 1.853231855971488 9.2701e-08 au
i 2.901116602739633 4.4384e-06 deg
node 286.4386355735214 9.8614e-05 deg
peri 344.6613916926297 9.9701e-05 deg
M 194.642064416946 1.5784e-05 deg
tp 2459543.734178233942
(2021-Nov-25.23417823)
5.2628e-05 TDB
period 1182.672627561883
3.24
6.5001e-06
1.78e-08
d
yr
n .3043953090739502 1.673e-09 deg/d
Q 2.524079188932835 9.2484e-09 au
  Orbit Determination Parameters
   # obs. used (total)      803  
   data-arc span      7496 days (20.52 yr)  
   first obs. used      1999-08-07  
   last obs. used      2020-02-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51499  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:57:23  

Additional Information
 Earth MOID = .837202 au 
 Jupiter MOID = 2.56877 au 
 T_jup = 3.658 
[ 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 15.9   n/a MPO449617  

101980 (1999 RX54)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1999 RX54 = 2000 YT45 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Nov-24 18:57 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin