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 ]  
226251 (2002 YS1)
Classification: Main-belt Asteroid          SPK-ID: 2226251
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1871636533041542 4.1795e-08  
a 2.350435537988385 1.3061e-08 au
q 1.910519435842563 9.9081e-08 au
i 6.340711121728135 4.643e-06 deg
node 79.3848594526294 4.7828e-05 deg
peri 38.91893951948328 5.0459e-05 deg
M 294.1689768605465 1.9332e-05 deg
tp 2459241.185012980919
(2021-Jan-26.68501298)
7.2152e-05 TDB
period 1316.197144461549
3.60
1.0971e-05
3.004e-08
d
yr
n .2735152568252036 2.2798e-09 deg/d
Q 2.790351640134206 1.5505e-08 au
  Orbit Determination Parameters
   # obs. used (total)      392  
   data-arc span      7591 days (20.78 yr)  
   first obs. used      1998-11-11  
   last obs. used      2019-08-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59248  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 04:09:18  

Additional Information
 Earth MOID = .931506 au 
 Jupiter MOID = 2.31679 au 
 T_jup = 3.526 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457265.5 (2015-Aug-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1859880845462839 4.1734e-08  
q 1.914088584165341 9.8819e-08 au
tp 2457923.981741957920
(2017-Jun-19.48174196)
6.5096e-05 TDB
node 79.41204757406847 4.7851e-05 deg
peri 38.79452591952052 5.0528e-05 deg
i 6.33849956971044 4.6402e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      392  
   data-arc span      7591 days (20.78 yr)  
   first obs. used      1998-11-11  
   last obs. used      2019-08-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59248  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 04:09:18  

Additional Information
 Jupiter MOID = 2.31679 au 
 T_jup = 3.526 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.741752936692162E-15 -4.099936119867149E-15 3.50696418577159E-13 6.106506446621374E-16 8.883743118219935E-14 -3.036594082925807E-15
q -4.099936119867149E-15 9.765135279142096E-15 -3.668427223223489E-13 -7.209729190608454E-16 -1.059643722067273E-13 7.192036296979955E-15
tp 3.50696418577159E-13 -3.668427223223489E-13 4.237483122504633E-9 1.547191303881721E-11 1.081910807668894E-9 -2.721543647850092E-12
node 6.106506446621374E-16 -7.209729190608454E-16 1.547191303881721E-11 2.289733383684105E-9 -2.271211514735952E-9 4.706292971027513E-12
peri 8.883743118219935E-14 -1.059643722067273E-13 1.081910807668894E-9 -2.271211514735952E-9 2.553091806174173E-9 -5.365251661771727E-12
i -3.036594082925807E-15 7.192036296979955E-15 -2.721543647850092E-12 4.706292971027513E-12 -5.365251661771727E-12 2.153112901140659E-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 16.4   n/a MPO450049  
diameter diameter 2.996 km 0.062 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.058   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

226251 (2002 YS1)          Discovered 2002-Dec-27 by LONEOS at Anderson Mesa
Reference: 20091202/Numbers.arcLast Updated: 2009-12-04

[ 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 2020-Feb-23 07:54 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin