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15820 (1994 TB)
Classification: TransNeptunian Object          SPK-ID: 2015820
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3146292276972676 1.5617e-05  
a 39.3381428959561 0.001074 au
q 26.96121337755667 0.00012327 au
i 12.14439590433075 6.9204e-06 deg
node 317.2568205991817 0.00013794 deg
peri 98.71507636237432 0.0010597 deg
M 2.178645362473585 0.00043329 deg
tp 2458455.114925494898
(2018-Dec-02.61492549)
0.12998 TDB
period 90119.59000014502
246.73
3.6908
0.0101
d
yr
n .003994691942111817 1.636e-07 deg/d
Q 51.71507241435553 0.001412 au
  Orbit Determination Parameters
   # obs. used (total)      162  
   data-arc span      9210 days (25.22 yr)  
   first obs. used      1994-10-13  
   last obs. used      2019-12-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      2  
   norm. resid. RMS      .68801  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:31:10  

Additional Information
 Earth MOID = 25.9956 au 
 Jupiter MOID = 22.0909 au 
 T_jup = 5.235 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 7.3   n/a MPO157265  
rotation period rot_per 6.5 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:
[Romanishin, W.; Tegler, S.C. (1999) Nature 398, 129-132.]

15820 (1994 TB)          Discovered 1994-Oct-02 by Jewitt, D. C., Chen, J. at Mauna Kea
Reference: 20000726/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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