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 ]  
523951 (1998 SR51)
Classification: Main-belt Asteroid          SPK-ID: 2523951
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06039509631231348 4.0681e-08  
a 2.006633296834265 1.5374e-08 au
q 1.885442485608465 9.0211e-08 au
i 21.14095687483821 1.0989e-05 deg
node 203.0373760583485 9.5889e-06 deg
peri 109.1110464821191 9.3865e-05 deg
M 286.4706089150187 9.2449e-05 deg
tp 2459212.560078172392
(2020-Dec-29.06007817)
0.00026638 TDB
period 1038.246434732876
2.84
1.1932e-05
3.267e-08
d
yr
n .3467384890106771 3.9848e-09 deg/d
Q 2.127824108060066 1.6302e-08 au
  Orbit Determination Parameters
   # obs. used (total)      188  
   data-arc span      7941 days (21.74 yr)  
   first obs. used      1998-09-27  
   last obs. used      2020-06-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .538  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 22:41:02  

Additional Information
 Earth MOID = .939697 au 
 Jupiter MOID = 2.98965 au 
 T_jup = 3.749 
[ 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 18.1   n/a MPO415659  

523951 (1998 SR51)          Discovered 1998-Sep-27 by Spacewatch at Kitt Peak
Reference: Last Updated: 2019-05-29

Alternate Designations
 1998 SR51 = 2015 TW281 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jan-25 08:51 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin