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 ]  
79685 (1998 SN55)
Classification: Main-belt Asteroid          SPK-ID: 2079685
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1725365214486734 3.2997e-08  
a 2.446637772602038 1.018e-08 au
q 2.024503402072352 8.158e-08 au
i 2.908425453814766 4.3948e-06 deg
node 15.5060967982637 9.5814e-05 deg
peri 34.31806196941898 9.7528e-05 deg
M 204.2657891580183 1.9102e-05 deg
tp 2459605.192339900482
(2022-Jan-25.69233990)
7.6422e-05 TDB
period 1397.825443666038
3.83
8.7244e-06
2.389e-08
d
yr
n .2575428867969651 1.6074e-09 deg/d
Q 2.868772143131724 1.1937e-08 au
  Orbit Determination Parameters
   # obs. used (total)      778  
   data-arc span      9025 days (24.71 yr)  
   first obs. used      1994-08-12  
   last obs. used      2019-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54768  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 07:42:57  

Additional Information
 Earth MOID = 1.03558 au 
 Jupiter MOID = 2.50813 au 
 T_jup = 3.476 
[ 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 15.8   n/a MPO432346  

79685 (1998 SN55)          Discovered 1998-Sep-16 by LONEOS at Anderson Mesa
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16

Alternate Designations
 1998 SN55 = 1994 PG25 = 2000 EX192 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Oct-21 20:28 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin