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 ]  
74823 (1999 TD15)
Classification: Mars-crossing Asteroid          SPK-ID: 2074823
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .29604087293829 4.1228e-08  
a 2.356257755074148 1.1389e-08 au
q 1.658709152394382 9.7684e-08 au
i 22.74751548155112 5.8529e-06 deg
node 213.4898559465103 1.1975e-05 deg
peri 231.5458145593546 1.5887e-05 deg
M 99.21140663796709 1.3063e-05 deg
tp 2458236.424270246447
(2018-Apr-27.92427025)		 4.6487e-05 TDB
period 1321.090660366882
3.62		 9.5785e-06
2.622e-08		 d
yr
n .2725021157140146 1.9758e-09 deg/d
Q 3.053806357753914 1.4761e-08 au
   Orbit Determination Parameters
   # obs. used (total)      978  
   data-arc span      7232 days (19.80 yr)  
   first obs. used      1999-07-22  
   last obs. used      2019-05-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49088  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 05:42:07  

Additional Information
 Earth MOID = .741645 au 
 Jupiter MOID = 2.49214 au 
 T_jup = 3.394 
[ 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 14.9   n/a MPO385288  
diameter diameter 2.374 km 0.329 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  
rotation period rot_per 33.451 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Skiff, B.A. (2011) Posting on CALL web site. http://www.minorplanet.info/call.html]
geometric albedo albedo 0.377   0.130 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  

74823 (1999 TD15)          Discovered 1999-Oct-10 by Kagawa, T. at Gekko
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2019-Dec-08 09:00 UT
(server date/time)   		NASA Home Page
Site Manager:   Ryan S. Park
Webmaster:   Alan B. Chamberlin