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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 | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1743642588384709 4.2323e-08  
a 2.621063905604087 1.4362e-08 au
q 2.164044040335162 1.1194e-07 au
i 3.987664258076983 6.0055e-06 deg
node 319.8050866097055 5.3886e-05 deg
peri 318.0606333879504 5.6153e-05 deg
M 313.0951435698851 1.6387e-05 deg
tp 2459402.443626876378
(2021-Jul-06.94362688)
7.0948e-05 TDB
period 1549.939840106192
4.24
1.2739e-05
3.488e-08
d
yr
n .2322670794598939 1.9091e-09 deg/d
Q 3.078083770873011 1.6866e-08 au
  Orbit Determination Parameters
   # obs. used (total)      752  
   data-arc span      8624 days (23.61 yr)  
   first obs. used      1996-09-10  
   last obs. used      2020-04-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57203  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 16:58:30  

Additional Information
 Earth MOID = 1.14776 au 
 Jupiter MOID = 2.06686 au 
 T_jup = 3.380 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457246.5 (2015-Aug-12.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1751585706218046 4.2319e-08  
q 2.162863133307996 1.1201e-07 au
tp 2457849.540055763676
(2017-Apr-06.04005576)
6.8655e-05 TDB
node 319.8762301096164 5.3783e-05 deg
peri 317.6009418809946 5.6042e-05 deg
i 3.992288272595162 6.0084e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      752  
   data-arc span      8624 days (23.61 yr)  
   first obs. used      1996-09-10  
   last obs. used      2020-04-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57203  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 16:58:30  

Additional Information
 Jupiter MOID = 2.06686 au 
 T_jup = 3.380 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.790902725644533E-15 -4.713758467841559E-15 1.537961276429849E-12 7.10548233263966E-15 3.464136438289781E-13 1.221787131635522E-16
q -4.713758467841559E-15 1.254678607520836E-14 -3.959375939542362E-12 -1.936985251045449E-14 -9.045134940655438E-13 -1.702075327900536E-16
tp 1.537961276429849E-12 -3.959375939542362E-12 4.713463724776634E-9 5.455197963478339E-12 1.089598691422989E-9 -3.508345436352511E-13
node 7.10548233263966E-15 -1.936985251045449E-14 5.455197963478339E-12 2.892602240694378E-9 -2.883626403650239E-9 6.771769431422306E-11
peri 3.464136438289781E-13 -9.045134940655438E-13 1.089598691422989E-9 -2.883626403650239E-9 3.140693774152267E-9 -6.767773883192641E-11
i 1.221787131635522E-16 -1.702075327900536E-16 -3.508345436352511E-13 6.771769431422306E-11 -6.767773883192641E-11 3.610054856708877E-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 15.53   n/a E2021B55  

118708 (2000 PO21)          Discovered 2000-Aug-01 by LINEAR at Socorro
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

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