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 ]  
18734 Darboux (1998 MY1)
Classification: Main-belt Asteroid          SPK-ID: 2018734
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1158614106822757 3.4184e-08  
a 2.647403756918462 1.3082e-08 au
q 2.340671822996333 8.9734e-08 au
i 11.31810787104479 5.2714e-06 deg
node 231.3182312409876 1.9656e-05 deg
peri 261.896358343524 3.0455e-05 deg
M 193.0623136341205 2.3566e-05 deg
tp 2459930.092880723394
(2022-Dec-16.59288072)
0.00010408 TDB
period 1573.362149543398
4.31
1.1662e-05
3.193e-08
d
yr
n .2288093685897266 1.6959e-09 deg/d
Q 2.954135690840592 1.4597e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1253  
   data-arc span      10507 days (28.77 yr)  
   first obs. used      1991-11-07  
   last obs. used      2020-08-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49138  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:36:06  

Additional Information
 Earth MOID = 1.38712 au 
 Jupiter MOID = 2.21679 au 
 T_jup = 3.355 
[ 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 14.42   n/a E2021B10  
diameter diameter 3.791 km 0.147 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 10.7371 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.257   0.046 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

18734 Darboux           Discovered 1998 June 20 by P. G. Comba at Prescott.
Jean-Gaston Darboux (1842-1917) was a French mathematician and professor at the Sorbonne, whose main interest was the application of analysis to geometric problems in the theory of surfaces and their deformations and representations.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010309/MPCPages.arcLast Updated: 2009-05-11
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Apr-19 20:23 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin