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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .007505027648965211 6.6229e-06  
a 43.61119186135955 0.00084848 au
q 43.28388866063572 0.00060428 au
i 2.257082071798233 3.6935e-05 deg
node 304.4584556671939 0.00023611 deg
peri 257.8287506244301 0.10448 deg
M 302.575593664328 0.10418 deg
tp 2475980.400213553290
(2066-Nov-25.90021355)
29.956 TDB
period 105195.0636035862
288.01
3.07
0.008405
d
yr
n .003422213815627442 9.9872e-08 deg/d
Q 43.93849506208338 0.00085485 au
  Orbit Determination Parameters
   # obs. used (total)      525  
   data-arc span      8806 days (24.11 yr)  
   first obs. used      1997-02-03  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      2  
   norm. resid. RMS      .50729  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 13:41:28  

Additional Information
 Earth MOID = 42.2806 au 
 Jupiter MOID = 37.8331 au 
 T_jup = 5.905 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 5.29   n/a E2021B10  
rotation period rot_per 300.24 h n/a LCDB (Rev. 2020-October); 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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