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181664 (2008 AW16)
Classification: Main-belt Asteroid          SPK-ID: 2181664
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1421729406403575 5.1621e-08  
a 2.403698858973307 1.639e-08 au
q 2.061957923779199 1.2723e-07 au
i 5.282410387201816 6.4199e-06 deg
node 137.611840252558 4.9405e-05 deg
peri 202.759413511923 5.3039e-05 deg
M 304.5303886417971 1.9634e-05 deg
tp 2459410.235108532073
(2021-Jul-14.73510853)
7.4939e-05 TDB
period 1361.189257014336
3.73
1.3922e-05
3.812e-08
d
yr
n .264474611553747 2.705e-09 deg/d
Q 2.745439794167414 1.872e-08 au
  Orbit Determination Parameters
   # obs. used (total)      218  
   data-arc span      7034 days (19.26 yr)  
   first obs. used      2001-02-20  
   last obs. used      2020-05-25  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .59084  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:31:31  

Additional Information
 Earth MOID = 1.05233 au 
 Jupiter MOID = 2.6267 au 
 T_jup = 3.505 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457522.5 (2016-May-14.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1411944736159159 5.1606e-08  
q 2.065089948444423 1.2681e-07 au
tp 2458049.433235818801
(2017-Oct-22.93323582)
7.221e-05 TDB
node 137.6367879202807 4.9397e-05 deg
peri 202.7224401644476 5.3102e-05 deg
i 5.281726222703248 6.4192e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      218  
   data-arc span      7034 days (19.26 yr)  
   first obs. used      2001-02-20  
   last obs. used      2020-05-25  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .59084  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:31:31  

Additional Information
 Jupiter MOID = 2.6267 au 
 T_jup = 3.505 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.663199498732882E-15 -6.504289279726683E-15 -1.680031827892872E-12 -2.659003827419171E-15 -4.757927206723006E-13 3.903076323689625E-15
q -6.504289279726683E-15 1.608194257179519E-14 4.183579483602176E-12 4.810963841623137E-15 1.165157707703442E-12 -9.017043924590324E-15
tp -1.680031827892872E-12 4.183579483602176E-12 5.214272548113428E-9 -1.64322153267418E-11 1.419717640876886E-9 -3.213542982962045E-12
node -2.659003827419171E-15 4.810963841623137E-15 -1.64322153267418E-11 2.440064204993603E-9 -2.433503322106306E-9 -9.557488301054868E-11
peri -4.757927206723006E-13 1.165157707703442E-12 1.419717640876886E-9 -2.433503322106306E-9 2.819824156834138E-9 9.421770909150821E-11
i 3.903076323689625E-15 -9.017043924590324E-15 -3.213542982962045E-12 -9.557488301054868E-11 9.421770909150821E-11 4.12057660535671E-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 17.12   n/a E2021B55  

181664 (2008 AW16)          Discovered 2008-Jan-10 by Spacewatch at Kitt Peak
Reference: 20080321/Numbers.arcLast Updated: 2008-03-26

Alternate Designations
 2008 AW16 = 2006 QJ167 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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