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JPL Small-Body Database Browser
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173785 (2001 SQ82)
Classification: Main-belt Asteroid          SPK-ID: 2173785
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 .01334334060403506 4.1755e-08  
a 2.725636661180873 2.1741e-08 au
q 2.689267562847892 1.0752e-07 au
i 4.548356624747722 5.4227e-06 deg
node 305.9245315020949 6.1709e-05 deg
peri 303.0543521717436 0.00025679 deg
M 61.37647376286608 0.00024944 deg
tp 2458320.279565143418
(2018-Jul-20.77956514)
0.0011399 TDB
period 1643.616036628737
4.50
1.9665e-05
5.384e-08
d
yr
n .219029257428277 2.6206e-09 deg/d
Q 2.762005759513855 2.2031e-08 au
  Orbit Determination Parameters
   # obs. used (total)      544  
   data-arc span      7606 days (20.82 yr)  
   first obs. used      1999-01-18  
   last obs. used      2019-11-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56195  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 13:03:10  

Additional Information
 Earth MOID = 1.67668 au 
 Jupiter MOID = 2.23791 au 
 T_jup = 3.352 
[ 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 15.5   n/a MPO417937  
diameter diameter 4.644 km 0.129 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.057   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

173785 (2001 SQ82)          Discovered 2001-Sep-20 by LINEAR at Socorro
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1928-Dec-05 20:49 00:03 Eunom 0.0216637894324813 0.0216397884659522 0.0216878091017929 4.29608446428349 4.29608431345387 2425586.367231286 3.12813659888079 1562.07092226978 65.3894992502577 -40.0595861247115 31906.660884449 T 15 CATAB v2.0f-lin.ifort 2019-Dec-14 13:03:25 2019-Dec-14 13:03
2048-Jul-18 01:43 < 00:01 Europ 0.0409380362862146 0.0409328966268043 0.0409431805520784 3.9731623932493 3.97316232790489 2469275.571752282 0.937911134706512 740.235893963131 43.6620740511368 70.0210723127294 131762.39223478 T 15 CATAB v2.0f-lin.ifort 2019-Dec-14 13:03:25 2019-Dec-14 13:03
2058-Oct-08 21:59 00:19 Amphi 0.0445286635657253 0.0445202214642914 0.0445371095970644 1.74501287600329 1.74501280201981 2473010.416114856 18.717212318699 783.45192418079 44.4976773039463 -57.747310697724 126346.464634826 T 15 CATAB v2.0f-lin.ifort 2019-Dec-14 13:03:25 2019-Dec-14 13:03
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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