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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457084.5 (2015-Mar-03.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07306005262789471 4.339e-08  
q 2.537879469292319 1.1843e-07 au
tp 2456709.652237871108
(2014-Feb-21.15223787)
0.00014126 TDB
node 51.70559565138316 8.3076e-05 deg
peri 343.4863309030004 8.8705e-05 deg
i 3.114695710680235 4.5337e-06 deg
  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
 Jupiter MOID = 2.3822 au 
 T_jup = 3.346 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.882680715945683E-15 -5.093501604083442E-15 -6.757815364831479E-13 4.287598890816705E-15 -2.07568738978254E-13 2.219555583944168E-17
q -5.093501604083442E-15 1.40252949916025E-14 1.824243088519718E-12 -1.134821913120901E-14 5.70711901041024E-13 7.531697859236072E-17
tp -6.757815364831479E-13 1.824243088519718E-12 1.995375956760688E-8 2.869165981217574E-11 4.411554522550028E-9 -2.48879245515065E-12
node 4.287598890816705E-15 -1.134821913120901E-14 2.869165981217574E-11 6.901662145671357E-9 -6.884912252490143E-9 -3.557769815105549E-11
peri -2.07568738978254E-13 5.70711901041024E-13 4.411554522550028E-9 -6.884912252490143E-9 7.868587238236988E-9 3.497461920536513E-11
i 2.219555583944168E-17 7.531697859236072E-17 -2.48879245515065E-12 -3.557769815105549E-11 3.497461920536513E-11 2.055471070531815E-11

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-May-15 03:28 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin