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 ]  
1898 Cowell (1971 UF1)
Classification: Main-belt Asteroid          SPK-ID: 2001898
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 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1567232163773664 2.8882e-08  
a 3.127303321760754 1.2157e-08 au
q 2.637182286586787 9.196e-08 au
i 1.029710328285296 3.9525e-06 deg
node 163.0306002078783 0.00015727 deg
peri 234.8434122868924 0.00015773 deg
M 300.083655387259 1.1449e-05 deg
tp 2459336.698866834853
(2021-May-02.19886683)
6.4142e-05 TDB
period 2020.009612449058
5.53
1.1779e-05
3.225e-08
d
yr
n .1782169737120886 1.0392e-09 deg/d
Q 3.617424356934722 1.4062e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2970  
   data-arc span      25012 days (68.48 yr)  
   first obs. used      1952-05-24  
   last obs. used      2020-11-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47194  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:03:20  

Additional Information
 Earth MOID = 1.64481 au 
 Jupiter MOID = 1.80187 au 
 T_jup = 3.195 
[ 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 12.3   n/a MPO435714  
diameter diameter 14.975 km 0.286 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.095   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

1898 Cowell (1971 UF1)          Discovered 1971-Oct-26 by Kohoutek, L. at Bergedorf
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1971 UF1 = 1960 VK 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jan-18 18:09 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin