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 ]  
18746 (1999 FT20)
Classification: Main-belt Asteroid          SPK-ID: 2018746
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2874273686675603 4.8208e-08  
a 2.436551812521933 1.1766e-08 au
q 1.736220136426579 1.144e-07 au
i 4.317782557496262 6.6794e-06 deg
node 6.511561420849375 4.5798e-05 deg
peri 297.31620032544 4.7136e-05 deg
M 112.5644799476839 1.1562e-05 deg
tp 2458566.129050899864
(2019-Mar-23.62905090)
4.3062e-05 TDB
period 1389.19081533292
3.80
1.0062e-05
2.755e-08
d
yr
n .2591436655256938 1.8771e-09 deg/d
Q 3.136883488617287 1.5148e-08 au
  Orbit Determination Parameters
   # obs. used (total)      801  
   data-arc span      9087 days (24.88 yr)  
   first obs. used      1995-03-10  
   last obs. used      2020-01-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53068  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 22:33:33  

Additional Information
 Earth MOID = .726504 au 
 Jupiter MOID = 2.14094 au 
 T_jup = 3.443 
[ 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 15.6   n/a MPO449088  

18746 (1999 FT20)          Discovered 1999-Mar-19 by Spacewatch at Kitt Peak
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 FT20 = 2000 SG170 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Mar-30 00:25 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin