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 ]  
100231 Monceau (1994 PB20)
Classification: Outer Main-belt Asteroid          SPK-ID: 2100231
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2935202416492035 5.3075e-08  
a 3.961748686212343 2.8832e-08 au
q 2.798895254481882 2.0912e-07 au
i 2.782709645547299 5.8735e-06 deg
node 7.909735569300061 0.00010553 deg
peri 13.44669380673298 0.00010609 deg
M 83.81559288310284 8.905e-06 deg
tp 2458329.919174083161
(2018-Jul-30.41917408)
6.7593e-05 TDB
period 2880.240883897987
7.89
3.1442e-05
8.608e-08
d
yr
n .1249895458440936 1.3645e-09 deg/d
Q 5.124602117942805 3.7295e-08 au
  Orbit Determination Parameters
   # obs. used (total)      640  
   data-arc span      9404 days (25.75 yr)  
   first obs. used      1994-08-12  
   last obs. used      2020-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5225  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:07:19  

Additional Information
 Earth MOID = 1.80202 au 
 Jupiter MOID = .378174 au 
 T_jup = 2.980 
[ 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 14.4   n/a MPO422317  
diameter diameter 9.250 km 0.124 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  
geometric albedo albedo 0.041   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)  

100231 Monceau           Discovered 1994 Aug. 12 by E. W. Elst at the European Southern Observatory.
Henri-Louis Duhamel du Monceau (1700-1782), a French physician, naval engineer and botanist, served three times as president of the French Academy of Sciences. Although chiefly occupying himself with experiments on plant physiology, his most famous written work was the Eléments d´architecture naval 1752--1758.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2013-07-22Last Updated: 2014-08-13

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1918-Apr-26 22:26 00:02 Jupiter 1.98583659094249 1.98583559268935 1.98583758919563 4.9478668677658 4.86089733285294 2421710.434465982 1.8860618050121 56.2296425546698 36.727234234112 -51.2262920608017 1851207.58713997 T 13 CATAB v2.0f-lin.ifort 2020-Nov-12 20:07:21 2020-Nov-12 20:07
2033-Aug-27 21:18 < 00:01 Jupiter 1.90995278423973 1.90995183743425 1.90995373104511 4.98628593986422 4.8965386730562 2463837.387769402 0.762883075016086 54.8911224148406 43.1871656985195 79.4598205006486 2017286.5966047 T 13 CATAB v2.0f-lin.ifort 2020-Nov-12 20:07:21 2020-Nov-12 20:07
2057-Nov-20 00:57 00:01 Jupiter 1.97417445546625 1.97417360198614 1.97417530894636 5.57059835677936 5.49303768857135 2472687.539759172 1.3166407973558 64.4830386430277 38.8397941513988 78.2254565189087 2506888.27226708 T 13 CATAB v2.0f-lin.ifort 2020-Nov-12 20:07:21 2020-Nov-12 20:07
2107-Jan-30 02:21 00:02 Jupiter 1.99445507205464 1.99445426012665 1.99445588398274 5.56955429581967 5.49277322215999 2490654.598045992 2.04778353446391 64.5079602234085 34.7679312656993 -73.2316298181969 2650271.17343109 T 13 CATAB v2.0f-lin.ifort 2020-Nov-12 20:07:21 2020-Nov-12 20:07
2131-May-20 00:12 00:02 Jupiter 1.92479987992079 1.92479895399095 1.92480080585063 4.87756016786415 4.78648914160245 2499530.507996165 1.95686003034866 57.4413744516978 36.7063661244882 -62.2446359132499 2043603.52987584 T 13 CATAB v2.0f-lin.ifort 2020-Nov-12 20:07:21 2020-Nov-12 20:07

Alternate Designations
 1994 PB20 = 2002 RA84 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Nov-30 01:22 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin