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 ]  
19891 (3326 T-2)
Classification: Main-belt Asteroid          SPK-ID: 2019891
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1846098209396397 4.2506e-08  
a 2.719885704181723 1.3353e-08 au
q 2.217768091356449 1.1302e-07 au
i 3.592279526451481 3.923e-06 deg
node 57.62112865526057 7.2099e-05 deg
peri 272.3608440179889 7.2892e-05 deg
M 210.4823412281157 1.114e-05 deg
tp 2459880.978480606405
(2022-Oct-28.47848061)
5.2511e-05 TDB
period 1638.416860125228
4.49
1.2066e-05
3.303e-08
d
yr
n .2197243014042742 1.6181e-09 deg/d
Q 3.222003317006996 1.5818e-08 au
  Orbit Determination Parameters
   # obs. used (total)      863  
   data-arc span      17036 days (46.64 yr)  
   first obs. used      1973-09-19  
   last obs. used      2020-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57086  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:06:01  

Additional Information
 Earth MOID = 1.20855 au 
 Jupiter MOID = 2.14226 au 
 T_jup = 3.331 
[ 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 15.24   n/a E2021B10  
diameter diameter 3.910 km 0.488 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.073   0.032 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19891 (3326 T-2)          Discovered 1973-Sep-25 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
 3326 T-2 = 1978 WA5 = 2000 SF63 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Apr-12 20:01 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin