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 ]  
136994 (1998 SX56)
Classification: Main-belt Asteroid          SPK-ID: 2136994
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2440999609637475 3.1029e-08  
a 2.388499616073597 8.068e-09 au
q 1.805466953028106 7.7742e-08 au
i 3.051952953899909 3.5817e-06 deg
node 24.08874104771172 6.5463e-05 deg
peri 26.30464071127574 6.5979e-05 deg
M 29.59174066247315 9.2872e-06 deg
tp 2459285.670799060847
(2021-Mar-12.17079906)
3.4506e-05 TDB
period 1348.298932231874
3.69
6.8316e-06
1.87e-08
d
yr
n .2670031039808677 1.3529e-09 deg/d
Q 2.971532279119087 1.0037e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1053  
   data-arc span      8210 days (22.48 yr)  
   first obs. used      1998-09-14  
   last obs. used      2021-03-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45971  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 18:19:52  

Additional Information
 Earth MOID = .816065 au 
 Jupiter MOID = 2.42131 au 
 T_jup = 3.491 
[ 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 15.65   n/a E2021B55  

136994 (1998 SX56)          Discovered 1998-Sep-17 by LONEOS at Anderson Mesa
Reference: 20061205/Numbers.arcLast Updated: 2006-12-13

Alternate Designations
 1998 SX56 = 2000 EP70 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Aug-04 23:32 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin