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 ]  
31276 Calvinrieder (1998 FG28)
Classification: Main-belt Asteroid          SPK-ID: 2031276
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.


[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05596552172217997 3.3012e-08  
a 2.82819967496277 1.4562e-08 au
q 2.669918004618979 9.8599e-08 au
i .9619605636586251 3.4903e-06 deg
node 273.709911840617 0.00022809 deg
peri 141.7501148583344 0.00023094 deg
M 350.1374591680665 3.5506e-05 deg
tp 2459048.093740944095
(2020-Jul-17.59374094)
0.00017139 TDB
period 1737.254834413212
4.76
1.3418e-05
3.674e-08
d
yr
n .2072234843551875 1.6005e-09 deg/d
Q 2.986481345306561 1.5377e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1315  
   data-arc span      15661 days (42.88 yr)  
   first obs. used      1977-12-07  
   last obs. used      2020-10-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54768  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 01:01:56  

Additional Information
 Earth MOID = 1.68138 au 
 Jupiter MOID = 2.21111 au 
 T_jup = 3.312 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.5   n/a MPO493068  
diameter diameter 3.218 km 0.439 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.296   0.096 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

31276 Calvinrieder           Discovered 1998 Mar. 20 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Calvin James Rieder (b. 1997) was awarded second place in the 2014 Intel International Science and Engineering Fair for his environmental management project. He attends the Saint Thomas Aquinas Catholic Secondary School, Oakville, Ontario, Canada.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2015-07-02Last Updated: 2015-07-06

Alternate Designations
 1998 FG28 = 1977 XW2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Dec-05 04:01 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin