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JPL Small-Body Database Browser
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173708 (2001 QS94)
Classification: Main-belt Asteroid          SPK-ID: 2173708
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1066405634514839 4.1944e-08  
a 2.743448534527784 1.88e-08 au
q 2.450885637005593 1.1379e-07 au
i 17.05962776006068 7.3624e-06 deg
node 353.0722917794971 1.5083e-05 deg
peri 240.2056244902187 3.6244e-05 deg
M 69.67695060587035 3.4165e-05 deg
tp 2458279.259503860124
(2018-Jun-09.75950386)
0.00015674 TDB
period 1659.753729242739
4.54
1.706e-05
4.671e-08
d
yr
n .2168996482172386 2.2295e-09 deg/d
Q 3.036011432049974 2.0804e-08 au
  Orbit Determination Parameters
   # obs. used (total)      477  
   data-arc span      6658 days (18.23 yr)  
   first obs. used      2001-08-23  
   last obs. used      2019-11-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57186  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 13:03:10  

Additional Information
 Earth MOID = 1.48919 au 
 Jupiter MOID = 2.05749 au 
 T_jup = 3.277 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457023.5 (2015-Jan-01.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1060745222041889 4.1745e-08  
q 2.453420083465617 1.1308e-07 au
tp 2456621.527529851680
(2013-Nov-25.02752985)
0.00015565 TDB
node 353.1225537596452 1.507e-05 deg
peri 240.7737933665211 3.6495e-05 deg
i 17.0669517453765 7.3642e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      477  
   data-arc span      6658 days (18.23 yr)  
   first obs. used      2001-08-23  
   last obs. used      2019-11-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57186  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 13:03:10  

Additional Information
 Jupiter MOID = 2.05749 au 
 T_jup = 3.277 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.742630260614949E-15 -4.669638364704801E-15 -1.793799678052904E-12 -9.186739976983191E-15 -3.859215489762545E-13 3.407609732576286E-15
q -4.669638364704801E-15 1.278692030998665E-14 5.172677946534624E-12 2.12638069100413E-14 1.123665373379771E-12 -5.981084098713589E-15
tp -1.793799678052904E-12 5.172677946534624E-12 2.42269192297075E-8 3.841985664237147E-11 5.186739688640053E-9 8.704653048573143E-12
node -9.186739976983191E-15 2.12638069100413E-14 3.841985664237147E-11 2.271179823895887E-10 -2.086149422568231E-10 -2.382731169740698E-11
peri -3.859215489762545E-13 1.123665373379771E-12 5.186739688640053E-9 -2.086149422568231E-10 1.331911239636752E-9 2.476684033025195E-11
i 3.407609732576286E-15 -5.981084098713589E-15 8.704653048573143E-12 -2.382731169740698E-11 2.476684033025195E-11 5.42321648875662E-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 15.3   n/a MPO449898  
diameter diameter 3.540 km 1.049 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.117   0.085 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

173708 (2001 QS94)          Discovered 2001-Aug-23 by Yeung, W. K. Y. at Desert Eagle
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28

[ show close-approach data ]
Alternate Designations
 2001 QS94 = 2004 CB101 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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