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 ]  
24702 (1991 OR)
Classification: Inner Main-belt Asteroid          SPK-ID: 2024702
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 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09001405475920471 7.8525e-08  
a 1.945072170103621 1.6025e-08 AU
q 1.769988337273308 1.5308e-07 AU
i 24.2545369693114 8.9338e-06 deg
node 135.2131019562468 1.6941e-05 deg
peri 232.9939320227062 4.8974e-05 deg
M 101.9566999527364 4.9555e-05 deg
tp 2456519.882160692092
(2013-Aug-15.38216069)
0.00013576 JED
period 990.8365237171987
2.71
1.2245e-05
3.352e-08
d
yr
n .3633293599729576 4.4901e-09 deg/d
Q 2.120156002933933 1.7468e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      593  
   data-arc span      8824 days (24.16 yr)  
   first obs. used      1990-01-26  
   last obs. used      2014-03-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .48973  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 23:52:40  

Additional Information
 Earth MOID = .802149 AU 
 T_jup = 3.785 
[ 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 14.7 mag n/a MPO233659  
rotation period rot_per 59.5 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:
[Warner, B.D. (2012) Minor Planet Bul. 39, 245-252.]

24702 (1991 OR)          Discovered 1991-Jul-18 by Holt, H. E. at Palomar (675)
Reference: 20010606/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1991 OR = 1999 NN1 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Jul-31 03:21 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin