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
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
173289 (1999 TC157)
Classification: Main-belt Asteroid          SPK-ID: 2173289
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0830407351599969 5.8528e-08  
a 2.560449021192716 2.0195e-08 au
q 2.347827452133179 1.5298e-07 au
i 10.82643538462413 7.0593e-06 deg
node 359.516646211726 3.3758e-05 deg
peri 18.16007149261024 5.6415e-05 deg
M 270.6233467527786 4.8709e-05 deg
tp 2458972.030279660908
(2020-May-02.53027966)
0.00020471 TDB
period 1496.485892215761
4.10
1.7705e-05
4.847e-08
d
yr
n .2405635775603395 2.8461e-09 deg/d
Q 2.773070590252254 2.1872e-08 au
  Orbit Determination Parameters
   # obs. used (total)      227  
   data-arc span      7327 days (20.06 yr)  
   first obs. used      1999-09-07  
   last obs. used      2019-09-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63366  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 19:46:04  

Additional Information
 Earth MOID = 1.34955 au 
 Jupiter MOID = 2.60466 au 
 T_jup = 3.405 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456555.5 (2013-Sep-20.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08486245801371009 5.8785e-08  
q 2.341595457905723 1.54e-07 au
tp 2455980.161397029607
(2012-Feb-22.66139703)
0.00018389 TDB
node 359.6148036896802 3.3702e-05 deg
peri 18.01391970702225 5.5498e-05 deg
i 10.8400532859079 7.0656e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      227  
   data-arc span      7327 days (20.06 yr)  
   first obs. used      1999-09-07  
   last obs. used      2019-09-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63366  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 19:46:04  

Additional Information
 Jupiter MOID = 2.60466 au 
 T_jup = 3.405 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.455684063019661E-15 -8.990803767388558E-15 -2.121176734835802E-12 -3.266961339454997E-14 -4.671627510885502E-13 2.551415585159084E-15
q -8.990803767388558E-15 2.371680826175625E-14 6.687748527527654E-12 8.414383610981206E-14 1.512299223822067E-12 -6.521102814497708E-15
tp -2.121176734835802E-12 6.687748527527654E-12 3.381529462563895E-8 1.735527305324902E-11 8.144686792066935E-9 -3.373314319797068E-11
node -3.266961339454997E-14 8.414383610981206E-14 1.735527305324902E-11 1.135818995374365E-9 -1.110846722253445E-9 -2.181353848178042E-11
peri -4.671627510885502E-13 1.512299223822067E-12 8.144686792066935E-9 -1.110846722253445E-9 3.08007648410109E-9 1.359276389623744E-11
i 2.551415585159084E-15 -6.521102814497708E-15 -3.373314319797068E-11 -2.181353848178042E-11 1.359276389623744E-11 4.992247107173366E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.3   n/a MPO493969  

173289 (1999 TC157)          Discovered 1999-Oct-09 by LINEAR at Socorro
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28

[ show close-approach data ]
Alternate Designations
 1999 TC157 = 1999 TM181 = 2003 QN50 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jan-28 23:13 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin