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 ]  
268528 (2005 YN254)
Classification: Main-belt Asteroid          SPK-ID: 2268528
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .13232564563812 1.0379e-07  
a 2.605106735823973 2.2888e-08 au
q 2.26038430504985 2.6853e-07 au
i 5.21393331146399 9.2477e-06 deg
node 18.12864844134944 5.647e-05 deg
peri 356.1660057847949 6.0371e-05 deg
M 228.8565341863665 1.8261e-05 deg
tp 2459559.975232820174
(2021-Dec-11.47523282)
7.8052e-05 TDB
period 1535.807236492329
4.20
2.024e-05
5.541e-08
d
yr
n .2344044170687812 3.0892e-09 deg/d
Q 2.949829166598095 2.5917e-08 au
  Orbit Determination Parameters
   # obs. used (total)      247  
   data-arc span      8147 days (22.31 yr)  
   first obs. used      1996-11-06  
   last obs. used      2019-02-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59164  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 09:11:29  

Additional Information
 Earth MOID = 1.26122 au 
 Jupiter MOID = 2.51399 au 
 T_jup = 3.394 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457101.5 (2015-Mar-20.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1312143657678305 1.0328e-07  
q 2.264807887975387 2.6668e-07 au
tp 2456489.409678134234
(2013-Jul-15.90967813)
8.7746e-05 TDB
node 18.1492737712986 5.6485e-05 deg
peri 356.5895920941533 6.0517e-05 deg
i 5.212423843547747 9.2438e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      247  
   data-arc span      8147 days (22.31 yr)  
   first obs. used      1996-11-06  
   last obs. used      2019-02-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59164  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 09:11:29  

Additional Information
 Jupiter MOID = 2.51399 au 
 T_jup = 3.394 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.066776014862962E-14 -2.746548796054185E-14 -2.569494020343032E-12 -1.015311599981989E-14 -8.705843380302475E-13 1.576851189680957E-14
q -2.746548796054185E-14 7.1116356505364E-14 5.903223178716559E-12 2.602482418409037E-14 2.113569514787563E-12 -3.997470187972111E-14
tp -2.569494020343032E-12 5.903223178716559E-12 7.699317649764814E-9 -6.553341721890119E-12 1.902822265959584E-9 -7.08525811045502E-12
node -1.015311599981989E-14 2.602482418409037E-14 -6.553341721890119E-12 3.190532335810771E-9 -3.177691126604751E-9 -1.550704043286644E-10
peri -8.705843380302475E-13 2.113569514787563E-12 1.902822265959584E-9 -3.177691126604751E-9 3.662314949683583E-9 1.524120610025569E-10
i 1.576851189680957E-14 -3.997470187972111E-14 -7.08525811045502E-12 -1.550704043286644E-10 1.524120610025569E-10 8.544734731702462E-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 16.3   n/a MPO437234  

268528 (2005 YN254)          Discovered 2005-Dec-30 by Spacewatch at Kitt Peak
Reference: 20110319/Numbers.arcLast Updated: 2011-03-23

[ 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-20 00:11 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin