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
JPL Small-Body Database Browser
Search: [ help ]  
74970 (1999 TF217)
Classification: Main-belt Asteroid          SPK-ID: 2074970
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09900406046346678 3.9836e-08  
a 2.208602340173661 8.2796e-09 au
q 1.989941740547353 8.8946e-08 au
i 6.120568122509207 3.6733e-06 deg
node 51.87569600344293 4.2134e-05 deg
peri 112.399584618086 4.6336e-05 deg
M 94.00351992036772 1.9864e-05 deg
tp 2459083.448107220434
(2020-Aug-21.94810722)
6.556e-05 TDB
period 1198.877249448884
3.28
6.7415e-06
1.846e-08
d
yr
n .3002809505022217 1.6885e-09 deg/d
Q 2.427262939799968 9.0993e-09 au
  Orbit Determination Parameters
   # obs. used (total)      979  
   data-arc span      7919 days (21.68 yr)  
   first obs. used      1999-10-09  
   last obs. used      2021-06-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50628  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 22:56:17  

Additional Information
 Earth MOID = 1.00669 au 
 Jupiter MOID = 2.54985 au 
 T_jup = 3.645 
[ 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 15.7   n/a MPO319944  
diameter diameter 2.166 km 0.349 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.261   0.127 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74970 (1999 TF217)          Discovered 1999-Oct-15 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 TF217 = 2001 FJ167 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Aug-03 07:32 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin