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 ]  
332955 (2011 ET5)
Classification: Main-belt Asteroid          SPK-ID: 2332955
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04637313394728468 6.0686e-08  
a 2.696610201865421 3.1766e-08 au
q 2.571559935770702 1.6271e-07 au
i 6.489514879930894 9.4856e-06 deg
node 148.8724221698312 5.7049e-05 deg
peri 313.1285074015138 0.00012168 deg
M 78.21984826253656 0.00010801 deg
tp 2458649.068929789654
(2019-Jun-14.56892979)
0.00048596 TDB
period 1617.43071721502
4.43
2.858e-05
7.825e-08
d
yr
n .2225752214103288 3.9329e-09 deg/d
Q 2.82166046796014 3.3239e-08 au
  Orbit Determination Parameters
   # obs. used (total)      150  
   data-arc span      6633 days (18.16 yr)  
   first obs. used      2002-02-19  
   last obs. used      2020-04-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61752  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 21:31:54  

Additional Information
 Earth MOID = 1.59331 au 
 Jupiter MOID = 2.23188 au 
 T_jup = 3.359 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457562.5 (2016-Jun-23.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0468235553402246 6.1309e-08  
q 2.57051681772959 1.6485e-07 au
tp 2457036.248927977184
(2015-Jan-13.74892798)
0.00048302 TDB
node 148.8891118446975 5.7051e-05 deg
peri 314.223274804136 0.00012027 deg
i 6.489360155510417 9.4858e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      150  
   data-arc span      6633 days (18.16 yr)  
   first obs. used      2002-02-19  
   last obs. used      2020-04-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61752  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 21:31:54  

Additional Information
 Jupiter MOID = 2.23188 au 
 T_jup = 3.359 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.75881840466833E-15 -9.93734036613861E-15 1.098442549919116E-11 2.069302070437232E-14 2.338232806263828E-12 9.420002687638961E-16
q -9.93734036613861E-15 2.717584838037469E-14 -3.237699961311698E-11 -5.887355703264016E-14 -6.859110750152243E-12 -8.314963311545066E-16
tp 1.098442549919116E-11 -3.237699961311698E-11 2.33311399691338E-7 1.835612107164086E-10 5.116632683701559E-8 -2.191833485257459E-11
node 2.069302070437232E-14 -5.887355703264016E-14 1.835612107164086E-10 3.25481171569986E-9 -3.192945988128344E-9 1.763934428162063E-10
peri 2.338232806263828E-12 -6.859110750152243E-12 5.116632683701559E-8 -3.192945988128344E-9 1.446415127287298E-8 -1.800239068554167E-10
i 9.420002687638961E-16 -8.314963311545066E-16 -2.191833485257459E-11 1.763934428162063E-10 -1.800239068554167E-10 8.997952796054865E-11

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 16.9   n/a MPO418710  

332955 (2011 ET5)          Discovered 2007-Mar-26 by Spacewatch at Kitt Peak
Reference: 20120703/Numbers.arcLast Updated: 2012-07-09

[ show close-approach data ]
Alternate Designations
 2011 ET5 = 2007 HT77 = 2010 BO24 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Oct-22 02:01 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin