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 ]  
85676 (1998 RT2)
Classification: Main-belt Asteroid          SPK-ID: 2085676
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ 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 .1356749983391186 5.2372e-08  
a 2.430390311459858 1.0531e-08 au
q 2.100647109989132 1.309e-07 au
i .6659298331299905 5.1019e-06 deg
node 200.4626206079737 0.0004195 deg
peri 323.3136765052523 0.00041989 deg
M 97.92256008791341 1.7528e-05 deg
tp 2458624.062636429004
(2019-May-20.56263643)
6.6858e-05 TDB
period 1383.924713200849
3.79
8.9945e-06
2.463e-08
d
yr
n .2601297574687887 1.6907e-09 deg/d
Q 2.760133512930584 1.1959e-08 au
  Orbit Determination Parameters
   # obs. used (total)      472  
   data-arc span      7485 days (20.49 yr)  
   first obs. used      1998-09-13  
   last obs. used      2019-03-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5694  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 06:45:21  

Additional Information
 Earth MOID = 1.10836 au 
 Jupiter MOID = 2.21558 au 
 T_jup = 3.495 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456520.5 (2013-Aug-16.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .135993309857021 5.2198e-08  
q 2.098658531800595 1.3065e-07 au
tp 2455858.241237683829
(2011-Oct-23.74123768)
6.553e-05 TDB
node 200.5782665948906 0.00042015 deg
peri 323.1071782630128 0.00042054 deg
i .6651672173265246 5.1013e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      472  
   data-arc span      7485 days (20.49 yr)  
   first obs. used      1998-09-13  
   last obs. used      2019-03-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5694  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 06:45:21  

Additional Information
 Jupiter MOID = 2.21558 au 
 T_jup = 3.495 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.724609449592392E-15 -6.805098738262259E-15 3.368387707568228E-13 2.137997248190229E-15 1.254132975340741E-13 -8.477488690144108E-16
q -6.805098738262259E-15 1.706977200416225E-14 -8.657385361282557E-13 -9.782889722087133E-16 -3.151816500137498E-13 2.168961057592797E-15
tp 3.368387707568228E-13 -8.657385361282557E-13 4.29417757751512E-9 -9.668018359864214E-13 1.211477876129916E-9 3.621857527770097E-13
node 2.137997248190229E-15 -9.782889722087133E-16 -9.668018359864214E-13 1.765243352437019E-7 -1.765102693258411E-7 -3.235436261385758E-10
peri 1.254132975340741E-13 -3.151816500137498E-13 1.211477876129916E-9 -1.765102693258411E-7 1.76851702606155E-7 3.236252142859974E-10
i -8.477488690144108E-16 2.168961057592797E-15 3.621857527770097E-13 -3.235436261385758E-10 3.236252142859974E-10 2.602317269617785E-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 16.5   n/a MPO468826  

85676 (1998 RT2)          Discovered 1998-Sep-13 by Spacewatch at Kitt Peak
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 1998 RT2 = 2000 AB235 = 2010 VF220 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Oct-29 15:07 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin