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 ]  
19900 (2172 T-3)
Classification: Outer Main-belt Asteroid          SPK-ID: 2019900
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01089449440639283 5.6073e-08  
a 3.25408809136619 2.74e-08 au
q 3.218636446856891 1.8628e-07 au
i 12.17436471373721 6.0097e-06 deg
node 216.3825036567555 2.2146e-05 deg
peri 186.7224392803536 0.00022125 deg
M 70.11544891842858 0.00021994 deg
tp 2458582.906621829571
(2019-Apr-09.40662183)
0.0013101 TDB
period 2144.086908952843
5.87
2.708e-05
7.414e-08
d
yr
n .1679036416372793 2.1207e-09 deg/d
Q 3.289539735875488 2.7699e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1021  
   data-arc span      15454 days (42.31 yr)  
   first obs. used      1977-10-11  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54543  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 22:57:58  

Additional Information
 Earth MOID = 2.22565 au 
 Jupiter MOID = 1.75444 au 
 T_jup = 3.145 
[ show covariance matrix ]

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 13.9   n/a MPO459004  
diameter diameter 7.630 km 0.252 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.093   0.017 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19900 (2172 T-3)          Discovered 1977-Oct-16 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar
Reference: 20001211/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2172 T-3 = 2000 RV13 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jun-07 03:32 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin