Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
15820 (1994 TB)
Classification: TransNeptunian Object          SPK-ID: 2015820
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3160484693920691 1.5634e-05  
a 39.41890923671475 0.0010789 au
q 26.96062330734616 0.00012316 au
i 12.14488662739789 6.9148e-06 deg
node 317.2472833496418 0.00013771 deg
peri 98.67423401413647 0.0010536 deg
M 2.991763175705398 0.0003964 deg
tp 2458449.257684665195
(2018-Nov-26.75768467)
0.12914 TDB
period 90397.27332587539
247.49
3.7114
0.01016
d
yr
n .003982421004029922 1.6351e-07 deg/d
Q 51.87719516608334 0.0014199 au
  Orbit Determination Parameters
   # obs. used (total)      165  
   data-arc span      9587 days (26.25 yr)  
   first obs. used      1994-10-13  
   last obs. used      2021-01-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      2  
   norm. resid. RMS      .68191  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 01:10:17  

Additional Information
 Earth MOID = 25.9944 au 
 Jupiter MOID = 22.0915 au 
 T_jup = 5.238 
[ 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 7.58   n/a MPCxxxxx  
rotation period rot_per 6.0 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:
[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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jun-17 03:54 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin