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 ]  
59940 (1999 RT197)
Classification: Main-belt Asteroid          SPK-ID: 2059940
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1496869544915853 6.1634e-08  
a 2.303152581689718 1.2192e-08 au
q 1.958400686007152 1.4452e-07 au
i 6.478272436551038 4.6174e-06 deg
node 252.9327467103065 5.479e-05 deg
peri 99.97282234504486 5.6802e-05 deg
M 332.8847321372478 1.894e-05 deg
tp 2459096.659875179729
(2020-Sep-04.15987518)
6.7632e-05 TDB
period 1276.681286717283
3.50
1.0138e-05
2.776e-08
d
yr
n .2819811050302649 2.2391e-09 deg/d
Q 2.647904477372284 1.4017e-08 au
  Orbit Determination Parameters
   # obs. used (total)      531  
   data-arc span      8137 days (22.28 yr)  
   first obs. used      1998-04-19  
   last obs. used      2020-07-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56736  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 05:24:29  

Additional Information
 Earth MOID = .965943 au 
 Jupiter MOID = 2.80603 au 
 T_jup = 3.566 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456984.5 (2014-Nov-23.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1492304641419548 6.1453e-08  
q 1.960134955010274 1.4396e-07 au
tp 2456544.060265522037
(2013-Sep-08.56026552)
5.8361e-05 TDB
node 253.0269982004077 5.4756e-05 deg
peri 100.1134191034842 5.68e-05 deg
i 6.479460948972165 4.6179e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      531  
   data-arc span      8137 days (22.28 yr)  
   first obs. used      1998-04-19  
   last obs. used      2020-07-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56736  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 05:24:29  

Additional Information
 Jupiter MOID = 2.80603 au 
 T_jup = 3.566 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.776505726002363E-15 -8.825691231290228E-15 4.177026672371346E-14 1.019252189122685E-15 6.868429874968351E-14 -2.34093299444538E-15
q -8.825691231290228E-15 2.072500525240996E-14 1.137500020172913E-13 -7.995897390574195E-16 -1.019981142452055E-13 5.560548175162263E-15
tp 4.177026672371346E-14 1.137500020172913E-13 3.406010212142886E-9 -9.08929425671949E-13 9.279760614667259E-10 8.458348876224673E-13
node 1.019252189122685E-15 -7.995897390574195E-16 -9.08929425671949E-13 2.998257429333494E-9 -2.978680578884299E-9 -5.110068005508838E-11
peri 6.868429874968351E-14 -1.019981142452055E-13 9.279760614667259E-10 -2.978680578884299E-9 3.226225951818016E-9 5.100200280394063E-11
i -2.34093299444538E-15 5.560548175162263E-15 8.458348876224673E-13 -5.110068005508838E-11 5.100200280394063E-11 2.1324877391804E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.9   n/a MPO267896  
rotation period rot_per 11.783 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

59940 (1999 RT197)          Discovered 1999-Sep-08 by LINEAR at Socorro
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 RT197 = 2002 LW18 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Sep-18 17:07 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin