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 ]  
19158 (1990 SN7)
Classification: Main-belt Asteroid          SPK-ID: 2019158
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2056036544676276 2.0684e-08  
a 2.188392819490615 4.6012e-09 au
q 1.738451258392629 4.5709e-08 au
i 4.232451287226954 3.4687e-07 deg
node 48.64201490752156 6.782e-06 deg
peri 277.0609722137805 7.3879e-06 deg
M 144.4083458328439 2.5696e-06 deg
tp 2458726.174862775152
(2019-Aug-30.67486278)
7.784e-06 TDB
period 1182.459700761344
3.24
3.7293e-06
1.021e-08
d
yr
n .3044501218673318 9.6018e-10 deg/d
Q 2.638334380588601 5.5472e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2267  
   data-arc span      15919 days (43.58 yr)  
   first obs. used      1977-08-19  
   last obs. used      2021-03-20  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5034  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 02:51:51  

Additional Information
 Earth MOID = .731199 au 
 Jupiter MOID = 2.70291 au 
 T_jup = 3.644 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.56   n/a MPCxxxxx  

19158 (1990 SN7)          Discovered 1990-Sep-22 by Elst, E. W. at La Silla
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1990 SN7 = 1977 QA2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-May-13 17:17 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin