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823 Sisigambis (A916 GK)
Classification: Main-belt Asteroid          SPK-ID: 2000823
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09029019393724709 3.4685e-08  
a 2.221079188240986 5.3093e-09 au
q 2.020537517584724 7.7566e-08 au
i 3.645567498117134 3.9352e-06 deg
node 255.0012176345896 5.5384e-05 deg
peri 219.229765286428 5.9038e-05 deg
M 232.6749106413564 2.0299e-05 deg
tp 2459428.118001876221
(2021-Aug-01.61800188)
6.8327e-05 TDB
period 1209.050639201369
3.31
4.3352e-06
1.187e-08
d
yr
n .2977542778835101 1.0676e-09 deg/d
Q 2.421620858897248 5.7887e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2610  
   data-arc span      38111 days (104.34 yr)  
   first obs. used      1916-04-01  
   last obs. used      2020-08-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45228  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 22:23:02  

Additional Information
 Earth MOID = 1.03857 au 
 Jupiter MOID = 2.65105 au 
 T_jup = 3.641 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456081.5 (2012-Jun-03.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08960753027598296 3.4661e-08  
q 2.022560853492751 7.7477e-08 au
tp 2455798.443602390511
(2011-Aug-24.94360239)
6.8602e-05 TDB
node 255.0715530980902 5.5341e-05 deg
peri 218.7513602482901 5.9062e-05 deg
i 3.646242617526072 3.9365e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2610  
   data-arc span      38111 days (104.34 yr)  
   first obs. used      1916-04-01  
   last obs. used      2020-08-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45228  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 22:23:02  

Additional Information
 Jupiter MOID = 2.65105 au 
 T_jup = 3.641 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.201385374217974E-15 -2.680328772825566E-15 -2.57741686765642E-13 3.110467680236991E-15 -7.750923481750288E-14 -3.141949111157579E-16
q -2.680328772825566E-15 6.0026497124942E-15 5.514258769766821E-13 -7.198093269538871E-15 1.660140107588346E-13 7.214372438564135E-16
tp -2.57741686765642E-13 5.514258769766821E-13 4.70623409338816E-9 -1.87281010147503E-12 1.426158201694031E-9 -1.644289522720232E-13
node 3.110467680236991E-15 -7.198093269538871E-15 -1.87281010147503E-12 3.062637691941849E-9 -3.056255305753299E-9 1.714698171544372E-11
peri -7.750923481750288E-14 1.660140107588346E-13 1.426158201694031E-9 -3.056255305753299E-9 3.488340681103346E-9 -1.715705238591127E-11
i -3.141949111157579E-16 7.214372438564135E-16 -1.644289522720232E-13 1.714698171544372E-11 -1.715705238591127E-11 1.549580034866692E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 11.2   n/a MPO337249  
diameter diameter 14.719 km 0.108 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 146. h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Behrend, R. (2004) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Hanus, J.; Durech, J.; Broz, M.; Warner, B.D.; et al. (2011) Astron. Astrophys. 530, A134.]
geometric albedo albedo 0.298   0.030 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

823 Sisigambis (A916 GK)          Discovered 1916-Mar-31 by Wolf, M. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 A916 GK = 1937 QE = 1939 FA1 = 1969 FN = 2005 AR82 = A913 JB 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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