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JPL Small-Body Database Browser
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266793 (2009 SQ277)
Classification: Main-belt Asteroid          SPK-ID: 2266793
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .113682162398165 4.8226e-08  
a 3.108371316397103 3.8609e-08 au
q 2.75500494361265 1.5498e-07 au
i 11.27220163571089 4.9981e-06 deg
node 176.2146321033381 2.6567e-05 deg
peri 258.8155260808254 3.384e-05 deg
M 216.6730790024839 2.0547e-05 deg
tp 2459397.435249091566
(2021-Jul-01.93524909)
0.0001179 TDB
period 2001.694361926159
5.48
3.7294e-05
1.021e-07
d
yr
n .1798476365060972 3.3508e-09 deg/d
Q 3.461737689181557 4.2998e-08 au
  Orbit Determination Parameters
   # obs. used (total)      344  
   data-arc span      8944 days (24.49 yr)  
   first obs. used      1995-02-26  
   last obs. used      2019-08-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56649  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 04:36:54  

Additional Information
 Earth MOID = 1.79737 au 
 Jupiter MOID = 1.89642 au 
 T_jup = 3.180 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457137.5 (2015-Apr-25.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1113847857569506 4.7707e-08  
q 2.761953792149467 1.5283e-07 au
tp 2457382.317875971515
(2015-Dec-25.81787597)
0.00011598 TDB
node 176.4795826728647 2.6415e-05 deg
peri 256.5877454201138 3.4278e-05 deg
i 11.30245405061334 5.0126e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      344  
   data-arc span      8944 days (24.49 yr)  
   first obs. used      1995-02-26  
   last obs. used      2019-08-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56649  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 04:36:54  

Additional Information
 Jupiter MOID = 1.89642 au 
 T_jup = 3.180 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.275947767264952E-15 -7.112939355847364E-15 -7.917760898033123E-13 2.720211433191074E-15 -1.468160163927383E-13 -3.880557084129291E-15
q -7.112939355847364E-15 2.335739179941535E-14 2.542454853996781E-12 -4.397141428992502E-15 4.393629678196837E-13 1.477089182035021E-14
tp -7.917760898033123E-13 2.542454853996781E-12 1.345036879995015E-8 4.012932771775698E-12 2.571081008614093E-9 2.04419875687548E-12
node 2.720211433191074E-15 -4.397141428992502E-15 4.012932771775698E-12 6.977640451565771E-10 -6.830494236366165E-10 3.349738650725147E-11
peri -1.468160163927383E-13 4.393629678196837E-13 2.571081008614093E-9 -6.830494236366165E-10 1.174949491771776E-9 -3.246324403260126E-11
i -3.880557084129291E-15 1.477089182035021E-14 2.04419875687548E-12 3.349738650725147E-11 -3.246324403260126E-11 2.512633959618545E-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 15.2   n/a MPO440312  

266793 (2009 SQ277)          Discovered 2009-Sep-25 by Spacewatch at Kitt Peak
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

[ show close-approach data ]
Alternate Designations
 2009 SQ277 = 1998 SK154 = 2006 GU13 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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