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 ]  
215131 (1999 RH237)
Classification: Main-belt Asteroid          SPK-ID: 2215131
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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2493404477432719 4.9031e-08  
a 2.345747479752674 8.6658e-09 au
q 1.760857752858491 1.1699e-07 au
i 5.669787460672094 4.0273e-06 deg
node 82.26430458386891 5.3179e-05 deg
peri 274.6143026813857 5.38e-05 deg
M 275.6157519205553 7.5868e-06 deg
tp 2459308.094948237747
(2021-Apr-03.59494824)
2.7958e-05 TDB
period 1312.261279632863
3.59
7.2718e-06
1.991e-08
d
yr
n .2743356110459335 1.5202e-09 deg/d
Q 2.930637206646857 1.0827e-08 au
  Orbit Determination Parameters
   # obs. used (total)      429  
   data-arc span      10097 days (27.64 yr)  
   first obs. used      1992-11-21  
   last obs. used      2020-07-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49419  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 03:43:52  

Additional Information
 Earth MOID = .768045 au 
 Jupiter MOID = 2.5356 au 
 T_jup = 3.512 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457497.5 (2016-Apr-19.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2487928613320042 4.9049e-08  
q 1.762521824957753 1.1692e-07 au
tp 2457996.627642141088
(2017-Aug-31.12764214)
2.7523e-05 TDB
node 82.27476007715183 5.3188e-05 deg
peri 274.7048315874713 5.3812e-05 deg
i 5.668771639498664 4.0266e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      429  
   data-arc span      10097 days (27.64 yr)  
   first obs. used      1992-11-21  
   last obs. used      2020-07-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49419  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 03:43:52  

Additional Information
 Jupiter MOID = 2.5356 au 
 T_jup = 3.512 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.405796503077161E-15 -5.726509173673055E-15 6.352701048138256E-13 9.468895760957562E-16 2.085400319788793E-13 -1.318974925423562E-14
q -5.726509173673055E-15 1.367066303663787E-14 -1.502979179700114E-12 -7.560050130274391E-16 -5.010078743906655E-13 3.143296531914364E-14
tp 6.352701048138256E-13 -1.502979179700114E-12 7.575297231061592E-10 1.840357649636375E-12 2.528235507709172E-10 -4.862644462919541E-12
node 9.468895760957562E-16 -7.560050130274391E-16 1.840357649636375E-12 2.828949180410542E-9 -2.814658030248925E-9 -9.03863471221287E-11
peri 2.085400319788793E-13 -5.010078743906655E-13 2.528235507709172E-10 -2.814658030248925E-9 2.895721691796306E-9 8.842734042558321E-11
i -1.318974925423562E-14 3.143296531914364E-14 -4.862644462919541E-12 -9.03863471221287E-11 8.842734042558321E-11 1.621327056491188E-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 16.91   n/a E2021B55  

215131 (1999 RH237)          Discovered 1999-Sep-08 by CSS at Catalina
Reference: 20090607/Numbers.arcLast Updated: 2009-06-08
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Mar-01 19:24 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin