Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Near-Earth Object (NEO) Program
Search JPL
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 ]  
14544 Ericjones (1997 SG21)
Classification: Main-belt Asteroid          SPK-ID: 2014544
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09172246384951979 9.2489e-08  
a 3.05570231976633 3.4814e-08 AU
q 2.77542577420667 2.833e-07 AU
i 9.505944744266522 1.0288e-05 deg
node 210.5072089645147 4.1515e-05 deg
peri 181.6735024336496 5.9667e-05 deg
M 33.48933994605029 4.0721e-05 deg
tp 2456619.003155046845
(2013-Nov-22.50315505)
0.00022068 JED
period 1951.034696067276
5.34
3.3343e-05
9.129e-08
d
yr
n .1845174771753963 3.1534e-09 deg/d
Q 3.335978865325991 3.8007e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      873  
   data-arc span      10016 days (27.42 yr)  
   first obs. used      1986-09-08  
   last obs. used      2014-02-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51185  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Feb-19 18:21:32  

Additional Information
 Earth MOID = 1.77987 AU 
 T_jup = 3.208 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.8 mag n/a PDS3 (MPC 39859)  

14544 Ericjones           Discovered 1997 Sept. 29 by Spacewatch at Kitt Peak.
Eric M. Jones (b. 1944) is an American astrophysicist and space historian. He incorporated the transcripts from the Apollo landings into the landmark web resource "The Apollo Lunar Surface Journal", expanding the transcripts to include annotations by the astronauts, as well as other documentation.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20120406/MPCPages.arcLast Updated: 2012-04-09

Alternate Designations
 1997 SG21 = 1986 RV9 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Apr-18 15:49 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin