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 ]  
487699 (2015 RP21)
Classification: Main-belt Asteroid          SPK-ID: 2487699
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1726589181581857 1.2588e-07  
a 2.569954514781425 3.4329e-08 au
q 2.126228948543519 3.3949e-07 au
i 8.973229177073945 1.1291e-05 deg
node 180.2179630092023 3.9662e-05 deg
peri 177.0476978598549 4.7491e-05 deg
M 43.91202548114376 2.549e-05 deg
tp 2458816.944436973097
(2019-Nov-29.44443697)
0.00010453 TDB
period 1504.827025527674
4.12
3.0152e-05
8.255e-08
d
yr
n .2392301532953693 4.7933e-09 deg/d
Q 3.013680081019331 4.0256e-08 au
  Orbit Determination Parameters
   # obs. used (total)      120  
   data-arc span      4840 days (13.25 yr)  
   first obs. used      2006-05-23  
   last obs. used      2019-08-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63855  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 08:19:36  

Additional Information
 Earth MOID = 1.12236 au 
 Jupiter MOID = 2.43969 au 
 T_jup = 3.392 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457394.5 (2016-Jan-07.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1747434969713291 1.2624e-07  
q 2.120277210958279 3.412e-07 au
tp 2457311.326043769235
(2015-Oct-15.82604377)
8.869e-05 TDB
node 180.3016030528412 3.9583e-05 deg
peri 176.8017892531176 4.7099e-05 deg
i 8.983625762671348 1.1306e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      120  
   data-arc span      4840 days (13.25 yr)  
   first obs. used      2006-05-23  
   last obs. used      2019-08-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63855  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 08:19:36  

Additional Information
 Jupiter MOID = 2.43969 au 
 T_jup = 3.392 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.593548779942244E-14 -4.296452419556976E-14 -6.315473401782604E-12 -2.188770291204024E-14 -1.688216677012722E-12 -4.818215738152328E-14
q -4.296452419556976E-14 1.164155068209816E-13 1.696776844725502E-11 5.798257322619047E-14 4.546882612995846E-12 1.324448374246014E-13
tp -6.315473401782604E-12 1.696776844725502E-11 7.865901811076503E-9 9.966625907344489E-12 2.291256822332753E-9 2.259546309760653E-11
node -2.188770291204024E-14 5.798257322619047E-14 9.966625907344489E-12 1.566816010544713E-9 -1.543490432101823E-9 -2.262894919061414E-10
peri -1.688216677012722E-12 4.546882612995846E-12 2.291256822332753E-9 -1.543490432101823E-9 2.218355563124904E-9 2.296726721651842E-10
i -4.818215738152328E-14 1.324448374246014E-13 2.259546309760653E-11 -2.262894919061414E-10 2.296726721651842E-10 1.278266207076495E-10

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.6   n/a MPO446846  

487699 (2015 RP21)          Discovered 2007-Sep-14 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2017-03-14

Alternate Designations
 2015 RP21 = 2011 SE250 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Oct-01 13:54 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin