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 ]  
275565 (1999 SZ9)
Classification: Main-belt Asteroid          SPK-ID: 2275565
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2037569532295057 6.4006e-08  
a 2.611854575038557 1.876e-08 au
q 2.079671044550156 1.7666e-07 au
i 11.44211787439259 4.8432e-06 deg
node 196.311014737988 2.2097e-05 deg
peri 150.0346919453636 2.5438e-05 deg
M 7.204379908274661 9.5225e-06 deg
tp 2459169.645677052829
(2020-Nov-16.14567705)
4.0788e-05 TDB
period 1541.778251897
4.22
1.6611e-05
4.548e-08
d
yr
n .2334966131199847 2.5157e-09 deg/d
Q 3.144038105526959 2.2583e-08 au
  Orbit Determination Parameters
   # obs. used (total)      363  
   data-arc span      9206 days (25.20 yr)  
   first obs. used      1995-09-20  
   last obs. used      2020-12-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56621  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 03:53:06  

Additional Information
 Earth MOID = 1.08054 au 
 Jupiter MOID = 2.34332 au 
 T_jup = 3.352 
[ 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 16.40   n/a E2021B55  

275565 (1999 SZ9)          Discovered 1999-Sep-27 by Sarounova, L. at Ondrejov
Reference: 20110517/Numbers.arcLast Updated: 2011-05-20
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jun-14 14:22 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin