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 ]  
312620 (2009 SA252)
Classification: Jupiter Trojan          SPK-ID: 2312620
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 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09732162638641387 8.6126e-08  
a 5.318407110001318 2.464e-07 au
q 4.800811080270923 5.969e-07 au
i 6.161365958426748 8.984e-06 deg
node 262.3948638065744 0.00010979 deg
peri 172.9965508050738 0.00013551 deg
M 272.6830531616689 8.47e-05 deg
tp 2460087.092830635375
(2023-May-22.59283064)
0.0011093 TDB
period 4479.925526404397
12.27
0.00031133
8.524e-07
d
yr
n .08035847870197457 5.5845e-09 deg/d
Q 5.836003139731713 2.7038e-07 au
  Orbit Determination Parameters
   # obs. used (total)      105  
   data-arc span      8758 days (23.98 yr)  
   first obs. used      1996-10-16  
   last obs. used      2020-10-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58456  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 18:46:43  

Additional Information
 Earth MOID = 3.81611 au 
 Jupiter MOID = .302535 au 
 T_jup = 2.979 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457107.5 (2015-Mar-26.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09656973522525547 8.6128e-08  
q 4.80685679473175 5.9516e-07 au
tp 2455611.562175310908
(2011-Feb-19.06217531)
0.00091485 TDB
node 262.4035488716853 0.00010976 deg
peri 173.2832640931115 0.0001359 deg
i 6.160497339370522 8.98e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      105  
   data-arc span      8758 days (23.98 yr)  
   first obs. used      1996-10-16  
   last obs. used      2020-10-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58456  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 18:46:43  

Additional Information
 Jupiter MOID = .302535 au 
 T_jup = 2.979 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.418109170504372E-15 -4.847751968184151E-14 -6.485429906388845E-12 -1.09968096148707E-14 -7.820966360485035E-13 -3.714909520665882E-15
q -4.847751968184151E-14 3.542203883412652E-13 1.445261204539644E-10 1.046607577628841E-13 1.494707898318224E-11 4.12914578886061E-14
tp -6.485429906388845E-12 1.445261204539644E-10 8.369466904033989E-7 6.089972140608957E-11 7.362545454181018E-8 6.417922039040576E-11
node -1.09968096148707E-14 1.046607577628841E-13 6.089972140608957E-11 1.204691551367762E-8 -1.196972316903864E-8 2.844413613998629E-10
peri -7.820966360485035E-13 1.494707898318224E-11 7.362545454181018E-8 -1.196972316903864E-8 1.846749582934726E-8 -2.766607443942327E-10
i -3.714909520665882E-15 4.12914578886061E-14 6.417922039040576E-11 2.844413613998629E-10 -2.766607443942327E-10 8.064073478962886E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.1   n/a MPO494657  

312620 (2009 SA252)          Discovered 2009-Sep-21 by Spacewatch at Kitt Peak
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11

Alternate Designations
 2009 SA252 = 1996 UL3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Nov-30 08:15 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin