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19521 Chaos (1998 WH24)
Classification: TransNeptunian Object          SPK-ID: 2019521
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09838067486000544 2.6047e-05  
a 45.47435961631759 0.0021149 au
q 41.00056142843769 0.00079952 au
i 12.0465151453457 6.8523e-05 deg
node 50.00631525986906 0.00015052 deg
peri 57.58584831712507 0.013852 deg
M 342.8028312096317 0.012193 deg
tp 2464351.103482261431
(2035-Jan-23.60348226)
3.4429 TDB
period 112007.8122797129
306.66
7.8139
0.02139
d
yr
n .003214061525467398 2.2422e-07 deg/d
Q 49.94815780419749 0.002323 au
  Orbit Determination Parameters
   # obs. used (total)      161  
   data-arc span      8893 days (24.35 yr)  
   first obs. used      1991-10-17  
   last obs. used      2016-02-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      3  
   norm. resid. RMS      .42764  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:08:14  

Additional Information
 Earth MOID = 40.0331 au 
 Jupiter MOID = 35.8662 au 
 T_jup = 5.869 
[ 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 4.8   n/a MPO166030  

19521 Chaos           Discovered 1998 Nov. 19 by the Deep Ecliptic Survey.
According to Hesiod, Chaos gave birth to Nyx (Night) and Erebus (Darkness). In the Pelasgian creation myth, Eurynome, the Goddess of All Things emerged from Chaos. In the Olympian version, Mother Earth emerged from Chaos.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20020328/MPCPages.arcLast Updated: 2003-10-02
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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