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243958 (2001 QX208)
Classification: Main-belt Asteroid          SPK-ID: 2243958
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1774503567536503 4.8825e-08  
a 2.251600841192338 1.159e-08 au
q 1.852053468655939 1.0781e-07 au
i 3.159477791423407 6.7649e-06 deg
node 345.3351323901263 8.3552e-05 deg
peri 320.9374068099728 8.563e-05 deg
M 215.6841674796284 1.8485e-05 deg
tp 2459495.205807268742
(2021-Oct-07.70580727)		 6.4773e-05 TDB
period 1234.057881983306
3.38		 9.5282e-06
2.609e-08		 d
yr
n .2917205142934049 2.2524e-09 deg/d
Q 2.651148213728738 1.3646e-08 au
   Orbit Determination Parameters
   # obs. used (total)      249  
   data-arc span      6744 days (18.46 yr)  
   first obs. used      2001-08-16  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5785  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 09:26:48  

Additional Information
 Earth MOID = .838499 au 
 Jupiter MOID = 2.59167 au 
 T_jup = 3.604 
[ 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 17.7   n/a MPO454792  

243958 (2001 QX208)          Discovered 2001-Aug-23 by LONEOS at Anderson Mesa
Reference: 20100726/Numbers.arcLast Updated: 2010-07-28

[ 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
1962-Nov-06 15:24 < 00:01 Hebe 0.0384701784492773 0.0384612763861159 0.0384790811554895 6.5972647839275 6.59726475943295 2437975.141356106 0.661775334205942 509.388809655987 56.7785328645926 29.5955502827212 51000.4592591702 T 15 CATAB v2.0f-lin.ifort 2020-Feb-25 09:26:49 2020-Feb-25 09:26
2027-Jan-22 01:31 < 00:01 Hebe 0.0168223264002869 0.0168184452109367 0.0168262076654419 6.83841139690044 6.83841134286033 2461427.563301579 0.472536821096326 202.267570623484 56.8739220729729 -17.665713243845 17907.1653604654 T 15 CATAB v2.0f-lin.ifort 2020-Feb-25 09:26:49 2020-Feb-25 09:26

Alternate Designations
 2001 QX208 = 2008 SU236 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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