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 ]  
249266 (2008 SD127)
Classification: Outer Main-belt Asteroid          SPK-ID: 2249266
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 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2600224164174791 7.9865e-08  
a 3.978987514082238 5.1157e-08 au
q 2.944361565775596 3.1527e-07 au
i 4.442980181253481 8.6102e-06 deg
node 218.769076028942 7.127e-05 deg
peri 185.1489697134322 7.9378e-05 deg
M 107.4265916952815 2.2837e-05 deg
tp 2457735.399450670210
(2016-Dec-12.89945067)
0.00018023 TDB
period 2899.060584944571
7.94
5.5909e-05
1.531e-07
d
yr
n .1241781568379617 2.3948e-09 deg/d
Q 5.01361346238888 6.4459e-08 au
  Orbit Determination Parameters
   # obs. used (total)      286  
   data-arc span      9225 days (25.26 yr)  
   first obs. used      1992-10-22  
   last obs. used      2018-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5039  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 09:54:44  

Additional Information
 Earth MOID = 1.95298 au 
 Jupiter MOID = .401082 au 
 T_jup = 2.991 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457296.5 (2015-Oct-01.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2607370433821014 7.9491e-08  
q 2.945412712781602 3.1436e-07 au
tp 2457736.434688673139
(2016-Dec-13.93468867)
0.00018002 TDB
node 218.7792111880681 7.1274e-05 deg
peri 185.357907998248 7.9337e-05 deg
i 4.441630937220209 8.6084e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      286  
   data-arc span      9225 days (25.26 yr)  
   first obs. used      1992-10-22  
   last obs. used      2018-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5039  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 09:54:44  

Additional Information
 Jupiter MOID = .401082 au 
 T_jup = 2.991 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.318866709967024E-15 -2.480954333258421E-14 -7.207552613046762E-12 -3.670805877512743E-14 -1.417041221312041E-12 1.910332825494145E-15
q -2.480954333258421E-14 9.882428026670137E-14 2.991578948087151E-11 1.523505212383608E-13 5.81084700578108E-12 -6.376722099257934E-15
tp -7.207552613046762E-12 2.991578948087151E-11 3.240899675032802E-8 8.285132921249421E-11 6.290152270062394E-9 -1.344225115447106E-11
node -3.670805877512743E-14 1.523505212383608E-13 8.285132921249421E-11 5.07993651532194E-9 -5.048144992101514E-9 -5.727854139131501E-11
peri -1.417041221312041E-12 5.81084700578108E-12 6.290152270062394E-9 -5.048144992101514E-9 6.294302170812142E-9 5.443852918957257E-11
i 1.910332825494145E-15 -6.376722099257934E-15 -1.344225115447106E-11 -5.727854139131501E-11 5.443852918957257E-11 7.410470334239244E-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 15.4   n/a MPO433633  
diameter diameter 4.758 km 0.519 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  
geometric albedo albedo 0.054   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  

249266 (2008 SD127)          Discovered 2008-Sep-22 by Spacewatch at Kitt Peak
Reference: 20100824/Numbers.arcLast Updated: 2010-08-27

[ 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-Jan-21 09:30 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin