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79360 Sila-Nunam (1997 CS29)
Classification: TransNeptunian Object          SPK-ID: 2079360
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .008580546935152035 1.3498e-05  
a 43.64216956463644 0.0018714 au
q 43.26769588033521 0.0013817 au
i 2.257279392835235 5.7208e-05 deg
node 304.4600455388021 0.00029543 deg
peri 256.6978079246751 0.20325 deg
M 303.1149653738151 0.20245 deg
tp 2475640.504959976341
(2065-Dec-21.00495998)
58.154 TDB
period 105307.1660227843
288.32
6.7735
0.01854
d
yr
n .003418570773446798 2.1989e-07 deg/d
Q 44.01664324893767 0.0018875 au
  Orbit Determination Parameters
   # obs. used (total)      346  
   data-arc span      8389 days (22.97 yr)  
   first obs. used      1997-02-03  
   last obs. used      2020-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      2  
   norm. resid. RMS      .45643  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 18:40:02  

Additional Information
 Earth MOID = 42.2656 au 
 Jupiter MOID = 37.8176 au 
 T_jup = 5.907 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456098.5 (2012-Jun-20.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .011868290932176 2.9541e-05  
q 43.44958728679449 0.00061349 au
tp 2463244.550756052488
(2032-Jan-13.05075605)
21.909 TDB
node 304.3360837469948 0.00029867 deg
peri 213.7904913169099 0.075921 deg
i 2.240917913810882 5.6982e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      346  
   data-arc span      8389 days (22.97 yr)  
   first obs. used      1997-02-03  
   last obs. used      2020-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      2  
   norm. resid. RMS      .45643  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 18:40:02  

Additional Information
 Jupiter MOID = 37.8176 au 
 T_jup = 5.907 
Orbit Covariance (6×6)
  e q tp node peri i
e 8.726761498992081E-10 1.678256825603299E-8 -.0005579216318015923 -2.098627088647023E-11 -1.932185725417574E-6 8.813540304391337E-12
q 1.678256825603299E-8 3.76374166065825E-7 -.01328092805642381 -4.570272570176409E-10 -4.601569690869547E-5 1.833523170159091E-10
tp -.0005579216318015923 -.01328092805642381 479.9963979845559 1.593411343288286E-5 1.663315862977529 -6.277403518863962E-6
node -2.098627088647023E-11 -4.570272570176409E-10 1.593411343288286E-5 8.920141788414564E-8 -3.392830448349972E-8 1.334214777027993E-8
peri -1.932185725417574E-6 -4.601569690869547E-5 1.663315862977529 -3.392830448349972E-8 .005763929944999349 -3.507766253524091E-8
i 8.813540304391337E-12 1.833523170159091E-10 -6.277403518863962E-6 1.334214777027993E-8 -3.507766253524091E-8 3.246943357912643E-9

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 5.3   n/a MPO385313  
rotation period rot_per 300.24 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:
[Grundy, W.M.; Benecchi, S.D.; Rabinowitz, D.L.; Porter, S.B.; et al. (2012) Icarus 220, 74-83.]
[Rabinowitz, D.L.; Benecchi, S.D.; Grundy, W.M.; Verbiscer, A.J. (2014) Icarus 236, 72-82.]

79360 Sila-Nunam           Discovered 1997 Feb. 3 by J. X. Luu, D. C. Jewitt, C. A. Trujillo and J. Chen at Mauna Kea.
Sila is the Inuit god of the sky, weather, and life force. Nunam is the Earth goddess, Sila's wife. Nunam created the land animals and, in some traditions, the Inuit people (in other traditions Sila created the first people out of wet sand). Sila breathed life into the Inuit.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20120109/MPCPages.arcLast Updated: 2012-01-11
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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