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180557 (2004 ET34)
Classification: Main-belt Asteroid          SPK-ID: 2180557
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .146820077544825 6.2862e-08  
a 2.518728222378374 1.2252e-08 au
q 2.148928349454442 1.5852e-07 au
i 5.137921856878703 4.5568e-06 deg
node 132.3560613552121 6.8891e-05 deg
peri 36.11358822098843 7.0621e-05 deg
M 79.62862870801052 1.6081e-05 deg
tp 2458877.548634194079
(2020-Jan-29.04863419)
6.4949e-05 TDB
period 1460.058945840362
4.00
1.0654e-05
2.917e-08
d
yr
n .2465653876685066 1.7991e-09 deg/d
Q 2.888528095302306 1.4051e-08 au
  Orbit Determination Parameters
   # obs. used (total)      409  
   data-arc span      8848 days (24.22 yr)  
   first obs. used      1996-04-21  
   last obs. used      2020-07-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54748  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:26:59  

Additional Information
 Earth MOID = 1.15798 au 
 Jupiter MOID = 2.08446 au 
 T_jup = 3.437 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457508.5 (2016-Apr-30.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1478262046455 6.2764e-08  
q 2.146364332095243 1.5872e-07 au
tp 2457417.432687869463
(2016-Jan-29.93268787)
6.4375e-05 TDB
node 132.3778369134124 6.8898e-05 deg
peri 36.01820026440428 7.0595e-05 deg
i 5.138037002166584 4.5575e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      409  
   data-arc span      8848 days (24.22 yr)  
   first obs. used      1996-04-21  
   last obs. used      2020-07-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54748  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:26:59  

Additional Information
 Jupiter MOID = 2.08446 au 
 T_jup = 3.437 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.939356848914043E-15 -9.939951553993604E-15 2.286476584093737E-12 1.016280718312911E-13 5.048787486307671E-13 -2.817625912286261E-15
q -9.939951553993604E-15 2.519198249812092E-14 -5.820877580410852E-12 -2.583585180373876E-13 -1.285472936202792E-12 7.32151153659444E-15
tp 2.286476584093737E-12 -5.820877580410852E-12 4.144201795291045E-9 8.567036754263821E-11 1.047379907547082E-9 -7.393716966303174E-13
node 1.016280718312911E-13 -2.583585180373876E-13 8.567036754263821E-11 4.746889620686933E-9 -4.704897408979072E-9 1.549654513857711E-10
peri 5.048787486307671E-13 -1.285472936202792E-12 1.047379907547082E-9 -4.704897408979072E-9 4.983690029629808E-9 -1.54565539091531E-10
i -2.817625912286261E-15 7.32151153659444E-15 -7.393716966303174E-13 1.549654513857711E-10 -1.54565539091531E-10 2.077105375076894E-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 16.78   n/a E2021B55  

180557 (2004 ET34)          Discovered 2004-Mar-12 by NEAT at Palomar
Reference: 20080321/Numbers.arcLast Updated: 2008-03-26

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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