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 ]  
2420 Ciurlionis (1975 TN)
Classification: Main-belt Asteroid          SPK-ID: 2002420
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1336811553385191 9.0633e-08  
a 2.559500903987407 1.6139e-08 AU
q 2.217343866052386 2.3232e-07 AU
i 14.61145597791222 9.3748e-06 deg
node 205.6496111909628 2.1936e-05 deg
peri 198.048259095382 3.5239e-05 deg
M 127.3527481773749 2.4613e-05 deg
tp 2456271.400710713086
(2012-Dec-09.90071071)
0.00010218 JED
period 1495.654761042122
4.09
1.4146e-05
3.873e-08
d
yr
n .2406972580685426 2.2766e-09 deg/d
Q 2.901657941922427 1.8297e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      918  
   data-arc span      14139 days (38.71 yr)  
   first obs. used      1975-10-03  
   last obs. used      2014-06-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49081  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 12:02:50  

Additional Information
 Earth MOID = 1.22747 AU 
 T_jup = 3.378 
[ 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 12.1 mag n/a MPO256880  
rotation period rot_per 12.84 h n/a Asteroid Lightcurve DataBase (Rev. 2013-Sep-12) Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Durkee, R.I.; Syring, C.W. (2013) Minor Planet Bul. 40, 88.]

2420 Ciurlionis (1975 TN)          Discovered 1975-Oct-03 by Chernykh, N. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1975 TN = 1979 QF 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Jul-31 23:40 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin