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18173 (2000 QD8)
Classification: Main-belt Asteroid          SPK-ID: 2018173
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2029653639857767 2.905e-08  
a 2.350986008766618 7.591e-09 au
q 1.873817277771833 6.7382e-08 au
i 5.456560436311061 4.3756e-06 deg
node 181.3138912668122 3.4959e-05 deg
peri 88.64211580600207 3.6687e-05 deg
M 284.0379057798845 1.1211e-05 deg
tp 2459478.322824543097
(2021-Sep-20.82282454)
4.1565e-05 TDB
period 1316.659550560808
3.60
6.377e-06
1.746e-08
d
yr
n .2734191992506068 1.3243e-09 deg/d
Q 2.828154739761403 9.1318e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1174  
   data-arc span      10581 days (28.97 yr)  
   first obs. used      1992-03-26  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55723  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:24:37  

Additional Information
 Earth MOID = .865901 au 
 Jupiter MOID = 2.29053 au 
 T_jup = 3.524 
[ show covariance matrix ]

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 15.27   n/a E2021B10  
diameter diameter 2.795 km 0.101 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.226   0.055 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

18173 (2000 QD8)          Discovered 2000-Aug-25 by Korlevic, K., Juric, M. at Visnjan
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2000 QD8 = 1993 TL36 = 1996 MT = 1999 CR13 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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