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
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
39759 (1997 EX42)
Classification: Main-belt Asteroid          SPK-ID: 2039759
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1769273187852802 5.2418e-08  
a 2.6516380832835 1.4364e-08 au
q 2.182490866819211 1.4024e-07 au
i 12.86822304072389 5.7264e-06 deg
node 331.1536294564751 1.8315e-05 deg
peri 352.850234693332 2.2305e-05 deg
M 333.0450031833442 1.5165e-05 deg
tp 2459118.588221728378
(2020-Sep-26.08822173)
6.6811e-05 TDB
period 1577.138372947148
4.32
1.2815e-05
3.509e-08
d
yr
n .228261518567505 1.8547e-09 deg/d
Q 3.120785299747789 1.6905e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1209  
   data-arc span      10441 days (28.59 yr)  
   first obs. used      1990-10-09  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4646  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 04:11:08  

Additional Information
 Earth MOID = 1.17127 au 
 Jupiter MOID = 2.22925 au 
 T_jup = 3.332 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.9   n/a MPO474254  

39759 (1997 EX42)          Discovered 1997-Mar-10 by LINEAR at Socorro
Reference: 20020526/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1997 EX42 = 1990 TQ5 = 1999 TS273 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Mar-30 17:42 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin