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173028 (2006 QP18)
Classification: Main-belt Asteroid          SPK-ID: 2173028
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08519084077781947 5.5056e-08  
a 3.046793035850697 2.8011e-08 au
q 2.787234175450571 1.7487e-07 au
i 11.01015908891586 7.1741e-06 deg
node 29.0593412106094 2.6657e-05 deg
peri 200.9664349246588 4.7688e-05 deg
M 306.8623581590486 4.1569e-05 deg
tp 2459287.223067773225
(2021-Mar-13.72306777)		 0.00022575 TDB
period 1942.508188589066
5.32		 2.6788e-05
7.334e-08		 d
yr
n .1853274040823914 2.5558e-09 deg/d
Q 3.306351896250823 3.0398e-08 au
   Orbit Determination Parameters
   # obs. used (total)      470  
   data-arc span      10419 days (28.53 yr)  
   first obs. used      1991-11-09  
   last obs. used      2020-05-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59707  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 10:25:58  

Additional Information
 Earth MOID = 1.78087 au 
 Jupiter MOID = 1.67988 au 
 T_jup = 3.205 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457017.5 (2014-Dec-26.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08567692869664437 5.5711e-08  
q 2.787053184451274 1.7715e-07 au
tp 2457337.838570874194
(2015-Nov-11.33857087)		 0.00021325 TDB
node 29.09647337949743 2.6662e-05 deg
peri 199.757052515555 4.708e-05 deg
i 11.00845277217264 7.1725e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      470  
   data-arc span      10419 days (28.53 yr)  
   first obs. used      1991-11-09  
   last obs. used      2020-05-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59707  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 10:25:58  

Additional Information
 Jupiter MOID = 1.67988 au 
 T_jup = 3.205 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.103695782079181E-15 -9.769850272478977E-15 -7.155192693406571E-12 -1.750037638066005E-15 -1.270198624709803E-12 -1.853652673364494E-15
q -9.769850272478977E-15 3.138113423647967E-14 2.336699636381553E-11 6.737507211684776E-15 4.127489251727213E-12 6.460349981365924E-15
tp -7.155192693406571E-12 2.336699636381553E-11 4.547737528735754E-8 -9.327752699336958E-12 8.304864933336033E-9 1.825957992063643E-11
node -1.750037638066005E-15 6.737507211684776E-15 -9.327752699336958E-12 7.108392796766187E-10 -6.994427150396712E-10 -9.264702652715501E-11
peri -1.270198624709803E-12 4.127489251727213E-12 8.304864933336033E-9 -6.994427150396712E-10 2.216562001597681E-9 9.44441040855185E-11
i -1.853652673364494E-15 6.460349981365924E-15 1.825957992063643E-11 -9.264702652715501E-11 9.44441040855185E-11 5.144435356875652E-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 15.24   n/a E2021B55  
diameter diameter 3.065 km 0.660 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.171   0.053 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

173028 (2006 QP18)          Discovered 2006-Aug-17 by NEAT at Palomar
Reference: 20071224/Numbers.arcLast Updated: 2007-12-22

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Alternate Designations
 2006 QP18 = 2005 CG77 = 2007 TC216 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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