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118708 (2000 PO21)
Classification: Main-belt Asteroid          SPK-ID: 2118708
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1745156086492217 4.2129e-08  
a 2.621425649113754 1.4099e-08 au
q 2.163945956429986 1.1168e-07 au
i 3.987643779400019 5.969e-06 deg
node 319.8054203991546 5.3758e-05 deg
peri 318.0779966866413 5.5988e-05 deg
M 358.6092799947463 1.6218e-05 deg
tp 2459402.488829440077
(2021-Jul-06.98882944)
6.985e-05 TDB
period 1550.260721268991
4.24
1.2507e-05
3.424e-08
d
yr
n .2322190035914193 1.8735e-09 deg/d
Q 3.078905341797522 1.656e-08 au
  Orbit Determination Parameters
   # obs. used (total)      759  
   data-arc span      9041 days (24.75 yr)  
   first obs. used      1996-09-10  
   last obs. used      2021-06-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56968  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 09:10:24  

Additional Information
 Earth MOID = 1.14933 au 
 Jupiter MOID = 2.06503 au 
 T_jup = 3.379 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457252.5 (2015-Aug-18.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1751353375926535 4.2162e-08  
q 2.162964812204876 1.1172e-07 au
tp 2457849.553242698690
(2017-Apr-06.05324270)
6.7828e-05 TDB
node 319.8764252881447 5.3657e-05 deg
peri 317.5988355970979 5.5883e-05 deg
i 3.992228971711129 5.9717e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      759  
   data-arc span      9041 days (24.75 yr)  
   first obs. used      1996-09-10  
   last obs. used      2021-06-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56968  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 09:10:24  

Additional Information
 Jupiter MOID = 2.06503 au 
 T_jup = 3.379 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.777673120454303E-15 -4.684316688597304E-15 1.49932232812563E-12 6.523843993557338E-15 3.392323573360803E-13 9.718068380999836E-18
q -4.684316688597304E-15 1.248126272205824E-14 -3.873478885813612E-12 -1.782979994230209E-14 -8.887802675644662E-13 1.175143717981966E-16
tp 1.49932232812563E-12 -3.873478885813612E-12 4.600605812322897E-9 4.974428850883097E-12 1.067485724440118E-9 -4.724759751652613E-13
node 6.523843993557338E-15 -1.782979994230209E-14 4.974428850883097E-12 2.879115988165874E-9 -2.870281170215937E-9 6.529475272597477E-11
peri 3.392323573360803E-13 -8.887802675644662E-13 1.067485724440118E-9 -2.870281170215937E-9 3.122962197940116E-9 -6.528656897766829E-11
i 9.718068380999836E-18 1.175143717981966E-16 -4.724759751652613E-13 6.529475272597477E-11 -6.528656897766829E-11 3.566152276994111E-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 15.53   n/a E2021B55  

118708 (2000 PO21)          Discovered 2000-Aug-01 by LINEAR at Socorro
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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