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 ]  
136403 (2004 YS20)
Classification: Main-belt Asteroid          SPK-ID: 2136403
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1937057187263435 5.1716e-08  
a 2.432948474473526 1.5805e-08 au
q 1.961672441601471 1.2724e-07 au
i 3.311873024434896 4.5569e-06 deg
node 282.5784667722188 0.00012265 deg
peri 312.8147162879251 0.00012344 deg
M 181.3545510322441 1.6439e-05 deg
tp 2459288.339718755311
(2021-Mar-14.83971876)
6.5591e-05 TDB
period 1386.110310577271
3.79
1.3506e-05
3.698e-08
d
yr
n .2597195888760624 2.5307e-09 deg/d
Q 2.904224507345582 1.8866e-08 au
  Orbit Determination Parameters
   # obs. used (total)      336  
   data-arc span      7830 days (21.44 yr)  
   first obs. used      1998-05-01  
   last obs. used      2019-10-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59961  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 16:03:01  

Additional Information
 Earth MOID = .951856 au 
 Jupiter MOID = 2.1123 au 
 T_jup = 3.478 
[ 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 16.4   n/a MPO453847  

136403 (2004 YS20)          Discovered 2004-Dec-18 by Mt. Lemmon Survey at Mt. Lemmon
Reference: 20060907/Numbers.arcLast Updated: 2006-09-10

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin