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249911 (2001 SN166)
Classification: Main-belt Asteroid          SPK-ID: 2249911
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 .2795438298468991 4.0867e-08  
a 2.764761464392379 1.8055e-08 au
q 1.991889456023012 1.182e-07 au
i 8.346042717751395 5.1875e-06 deg
node 177.9474329879804 2.9411e-05 deg
peri 256.9276119331987 3.1129e-05 deg
M 251.7083435842118 9.6667e-06 deg
tp 2459105.600064723834
(2020-Sep-13.10006472)
4.8105e-05 TDB
period 1679.132347947627
4.60
1.6449e-05
4.503e-08
d
yr
n .2143964413764176 2.1002e-09 deg/d
Q 3.537633472761745 2.3103e-08 au
  Orbit Determination Parameters
   # obs. used (total)      415  
   data-arc span      6618 days (18.12 yr)  
   first obs. used      2001-09-11  
   last obs. used      2019-10-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53922  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 02:48:26  

Additional Information
 Earth MOID = 1.02589 au 
 Jupiter MOID = 1.85574 au 
 T_jup = 3.267 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457178.5 (2015-Jun-05.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2759908506762194 4.0493e-08  
q 2.004306020892552 1.1689e-07 au
tp 2457421.816528013489
(2016-Feb-03.31652801)
4.1244e-05 TDB
node 178.1202005735584 2.9274e-05 deg
peri 256.4270314496291 3.1113e-05 deg
i 8.356232606520775 5.1964e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      415  
   data-arc span      6618 days (18.12 yr)  
   first obs. used      2001-09-11  
   last obs. used      2019-10-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53922  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 02:48:26  

Additional Information
 Jupiter MOID = 1.85574 au 
 T_jup = 3.267 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.639646123913355E-15 -4.706745775116805E-15 -4.446827663674985E-13 2.180955322213056E-14 -6.888303274646467E-14 -7.443601304022919E-15
q -4.706745775116805E-15 1.366219650342946E-14 1.419007625973256E-12 -6.406886818838912E-14 2.222291624781803E-13 2.242146134675328E-14
tp -4.446827663674985E-13 1.419007625973256E-12 1.701098665447195E-9 -1.641271134816772E-11 4.451804863274029E-10 7.095056114534655E-12
node 2.180955322213056E-14 -6.406886818838912E-14 -1.641271134816772E-11 8.56969961337355E-10 -8.506803929451916E-10 1.612314083003087E-11
peri -6.888303274646467E-14 2.222291624781803E-13 4.451804863274029E-10 -8.506803929451916E-10 9.680044144081656E-10 -1.457050559384476E-11
i -7.443601304022919E-15 2.242146134675328E-14 7.095056114534655E-12 1.612314083003087E-11 -1.457050559384476E-11 2.700219571231773E-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 16.0   n/a MPO454853  

249911 (2001 SN166)          Discovered 2001-Sep-19 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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