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 ]  
26115 (1991 RG17)
Classification: Main-belt Asteroid          SPK-ID: 2026115
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ 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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1172687125218156 3.5273e-08  
a 2.335202564387108 7.2159e-09 au
q 2.061356366183789 8.1702e-08 au
i 3.412457055173681 3.8113e-06 deg
node 127.6338045948942 5.888e-05 deg
peri 234.0237073261112 6.0819e-05 deg
M 69.99758585390589 1.6171e-05 deg
tp 2458947.065446704083
(2020-Apr-07.56544670)
5.8306e-05 TDB
period 1303.422654846304
3.57
6.0415e-06
1.654e-08
d
yr
n .2761959051896718 1.2802e-09 deg/d
Q 2.609048762590426 8.0621e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1832  
   data-arc span      10757 days (29.45 yr)  
   first obs. used      1991-09-13  
   last obs. used      2021-02-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51848  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 05:12:28  

Additional Information
 Earth MOID = 1.05864 au 
 Jupiter MOID = 2.82512 au 
 T_jup = 3.556 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456228.5 (2012-Oct-28.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1170955319075937 3.5249e-08  
q 2.061478378808507 8.1611e-08 au
tp 2456340.354987218755
(2013-Feb-16.85498722)
5.7233e-05 TDB
node 127.6976528228348 5.8986e-05 deg
peri 233.9959561730867 6.0923e-05 deg
i 3.409424638602556 3.8078e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1832  
   data-arc span      10757 days (29.45 yr)  
   first obs. used      1991-09-13  
   last obs. used      2021-02-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51848  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 05:12:28  

Additional Information
 Jupiter MOID = 2.82512 au 
 T_jup = 3.556 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.242505645259608E-15 -2.868032574385038E-15 -4.810112060008272E-14 1.098562706028828E-15 -4.089475474771718E-14 2.053530329538072E-16
q -2.868032574385038E-15 6.660344827369171E-15 1.090169543013387E-13 -2.196966993768847E-15 9.239515988387431E-14 -4.295268428235421E-16
tp -4.810112060008272E-14 1.090169543013387E-13 3.27560961881842E-9 -2.339004316819248E-12 8.822220543636966E-10 -3.056696521416919E-13
node 1.098562706028828E-15 -2.196966993768847E-15 -2.339004316819248E-12 3.479376512368042E-9 -3.473541000851123E-9 2.627066274515367E-11
peri -4.089475474771718E-14 9.239515988387431E-14 8.822220543636966E-10 -3.473541000851123E-9 3.711668222824859E-9 -2.630513188377569E-11
i 2.053530329538072E-16 -4.295268428235421E-16 -3.056696521416919E-13 2.627066274515367E-11 -2.630513188377569E-11 1.449966401617945E-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 14.60   n/a MPCxxxxx  
diameter diameter 3.846 km 0.107 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.208   0.030 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

26115 (1991 RG17)          Discovered 1991-Sep-15 by Holt, H. E. at Palomar
Reference: 20010705/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1991 RG17 = 1998 QT35 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-May-17 17:52 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin