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
JPL Small-Body Database Browser
Search: [ help ]  
120590 (1995 ST42)
Classification: Main-belt Asteroid          SPK-ID: 2120590
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07547088327759777 4.3664e-08  
a 2.73499812882016 1.6875e-08 au
q 2.528585404275525 1.1957e-07 au
i 3.116239929826631 4.5387e-06 deg
node 51.60965288334125 8.3016e-05 deg
peri 343.0257155859477 8.8243e-05 deg
M 182.7927251800569 2.9967e-05 deg
tp 2460013.729310714126
(2023-Mar-10.22931071)
0.00013902 TDB
period 1652.091045102724
4.52
1.529e-05
4.186e-08
d
yr
n .2179056663173281 2.0168e-09 deg/d
Q 2.941410853364795 1.8149e-08 au
  Orbit Determination Parameters
   # obs. used (total)      591  
   data-arc span      9282 days (25.41 yr)  
   first obs. used      1995-09-19  
   last obs. used      2021-02-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55168  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 17:07:15  

Additional Information
 Earth MOID = 1.53405 au 
 Jupiter MOID = 2.3822 au 
 T_jup = 3.346 
[ 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 15.99   n/a E2021B55  

120590 (1995 ST42)          Discovered 1995-Sep-25 by Spacewatch at Kitt Peak
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

[ show close-approach data ]
Alternate Designations
 1995 ST42 = 2002 EE37 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Apr-14 15:21 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin