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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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1771152545040954 8.1818e-08  
a 2.759547796817374 1.8252e-08 au
q 2.270789786467849 2.2967e-07 au
i 6.257454336327213 7.8119e-06 deg
node 213.5602839538311 6.1765e-05 deg
peri 175.1155454620153 7.7072e-05 deg
M 4.269238219334095 3.7286e-05 deg
tp 2458980.643477336622
(2020-May-11.14347734)
0.00017338 TDB
period 1674.384935102321
4.58
1.6612e-05
4.548e-08
d
yr
n .2150043233505326 2.1331e-09 deg/d
Q 3.248305807166899 2.1485e-08 au
  Orbit Determination Parameters
   # obs. used (total)      216  
   data-arc span      6592 days (18.05 yr)  
   first obs. used      2001-09-16  
   last obs. used      2019-10-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60136  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 02:48:26  

Additional Information
 Earth MOID = 1.27593 au 
 Jupiter MOID = 2.19676 au 
 T_jup = 3.311 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456977.5 (2014-Nov-16.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1792808310506417 8.0255e-08  
q 2.264860888034545 2.2517e-07 au
tp 2457299.061237774576
(2015-Oct-03.56123777)
0.00016321 TDB
node 213.6398749280753 6.1705e-05 deg
peri 173.8902961583719 7.6389e-05 deg
i 6.258349859943094 7.819e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      216  
   data-arc span      6592 days (18.05 yr)  
   first obs. used      2001-09-16  
   last obs. used      2019-10-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60136  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 02:48:26  

Additional Information
 Jupiter MOID = 2.19676 au 
 T_jup = 3.311 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.440856017475979E-15 -1.803026434268609E-14 5.567304543202564E-12 1.250981738438379E-13 1.624947633830672E-12 -8.459150759180988E-16
q -1.803026434268609E-14 5.070136347425929E-14 -1.474245576316345E-11 -3.468088150325714E-13 -4.33673998448677E-12 4.334830041267967E-15
tp 5.567304543202564E-12 -1.474245576316345E-11 2.663643901433309E-8 1.989247440400023E-10 7.386685869554329E-9 3.568872540774605E-11
node 1.250981738438379E-13 -3.468088150325714E-13 1.989247440400023E-10 3.807539033017523E-9 -3.723736349475244E-9 3.484015640240642E-11
peri 1.624947633830672E-12 -4.33673998448677E-12 7.386685869554329E-9 -3.723736349475244E-9 5.835287494241882E-9 -2.487106410031491E-11
i -8.459150759180988E-16 4.334830041267967E-15 3.568872540774605E-11 3.484015640240642E-11 -2.487106410031491E-11 6.113648327252375E-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 16.6   n/a MPO494362  

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

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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