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 ]  
52299 (1991 NJ1)
Classification: Main-belt Asteroid          SPK-ID: 2052299
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2196170653920705 6.5131e-08  
a 2.239280006094452 1.3918e-08 au
q 1.747495902564851 1.4959e-07 au
i 6.161430019920785 6.8482e-06 deg
node 120.0795957572242 5.9995e-05 deg
peri 204.1811440452338 6.2431e-05 deg
M 100.3490791945787 2.0002e-05 deg
tp 2457059.329146871643
(2015-Feb-05.82914687)
6.5964e-05 JED
period 1223.942542492645
3.35
1.1411e-05
3.124e-08
d
yr
n .294131454297548 2.7422e-09 deg/d
Q 2.731064109624053 1.6975e-08 au
  Orbit Determination Parameters
   # obs. used (total)      469  
   data-arc span      8921 days (24.42 yr)  
   first obs. used      1991-07-12  
   last obs. used      2015-12-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5836  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 15:09:52  

Additional Information
 Earth MOID = .735197 au 
 Jupiter MOID = 2.58795 au 
 T_jup = 3.596 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.9 mag n/a MPO263765  

52299 (1991 NJ1)          Discovered 1991-Jul-12 by Holt, H. E. at Palomar
Reference: 20030216/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2016-Feb-10 06:46 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin