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249898 (2001 SG11)
Classification: Main-belt Asteroid          SPK-ID: 2249898
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1771152643038808 8.0137e-08  
a 2.759547789776704 1.8076e-08 au
q 2.270789753631213 2.2468e-07 au
i 6.257454519813241 7.7843e-06 deg
node 213.5603158413224 6.1572e-05 deg
peri 175.1154932562831 7.6787e-05 deg
M 4.26925735482957 3.7199e-05 deg
tp 2458980.643388412100
(2020-May-11.14338841)
0.00017297 TDB
period 1674.384928694319
4.58
1.6452e-05
4.504e-08
d
yr
n .2150043241733709 2.1126e-09 deg/d
Q 3.248305825922194 2.1278e-08 au
  Orbit Determination Parameters
   # obs. used (total)      220  
   data-arc span      6968 days (19.08 yr)  
   first obs. used      2001-09-16  
   last obs. used      2020-10-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59096  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 00:14:30  

Additional Information
 Earth MOID = 1.27593 au 
 Jupiter MOID = 2.19676 au 
 T_jup = 3.311 
[ 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 16.6   n/a MPO494362  

249898 (2001 SG11)          Discovered 2001-Sep-16 by LINEAR at Socorro
Reference: 20100923/Numbers.arcLast Updated: 2010-09-27

[ 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
2090-Sep-23 10:30 00:03 Thisb 0.0472934361315798 0.047281020162524 0.0473058711673023 4.26331745211966 4.26331741830335 2484682.937406349 3.42905804489843 1643.05547255817 112.042952096003 -68.1837304071852 58615.402401062 T 11 CATAB v2.0f-lin.ifort 2020-Nov-12 00:14:31 2020-Nov-12 00:14
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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