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 ]  
18936 (2000 QA42)
Classification: Main-belt Asteroid          SPK-ID: 2018936
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 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07408194608831493 1.9603e-08  
a 2.986992882707733 1.6598e-08 au
q 2.765710637004798 5.6867e-08 au
i 9.846836571438464 9.5325e-07 deg
node 333.3094214448324 6.929e-06 deg
peri 275.2560897522631 1.3494e-05 deg
M 51.06991011960845 1.3264e-05 deg
tp 2458933.007074029546
(2020-Mar-24.50707403)
6.8983e-05 TDB
period 1885.600603639787
5.16
1.5717e-05
4.303e-08
d
yr
n .1909206007386133 1.5914e-09 deg/d
Q 3.208275128410667 1.7828e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1640  
   data-arc span      10947 days (29.97 yr)  
   first obs. used      1990-09-20  
   last obs. used      2020-09-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49623  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:42:49  

Additional Information
 Earth MOID = 1.7731 au 
 Jupiter MOID = 1.92061 au 
 T_jup = 3.231 
[ 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 13.09   n/a E2021B10  
diameter diameter 8.526 km 0.317 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.168   0.032 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

18936 (2000 QA42)          Discovered 2000-Aug-24 by LINEAR at Socorro
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2000 QA42 = 1990 SR20 = 1995 SE54 = 1998 DW3 = 1999 LE33 
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-18 12:19 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin