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

Significant website upgrade scheduled for September 27. More details available here.

JPL Small-Body Database Browser
Search: [ help ]  
83991 (2002 MS1)
Classification: Main-belt Asteroid          SPK-ID: 2083991
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2097797134330141 8.0064e-08  
a 2.744743943617618 1.6544e-08 au
q 2.168952345678512 2.2098e-07 au
i 34.21097392354068 6.2694e-06 deg
node 278.4830449659416 1.2365e-05 deg
peri 61.19354929564299 2.0223e-05 deg
M 71.14788736727327 1.2485e-05 deg
tp 2459068.245500239890
(2020-Aug-06.74550024)
5.7721e-05 TDB
period 1660.929428636788
4.55
1.5017e-05
4.111e-08
d
yr
n .2167461144303229 1.9597e-09 deg/d
Q 3.320535541556723 2.0015e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1029  
   data-arc span      10162 days (27.82 yr)  
   first obs. used      1993-10-13  
   last obs. used      2021-08-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41407  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 01:53:06  

Additional Information
 Earth MOID = 1.27996 au 
 Jupiter MOID = 2.2217 au 
 T_jup = 3.070 
[ 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 14.09   n/a E2021B10  
diameter diameter 9.225 km 0.214 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 8.24500 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 sidereal period (not synodic); Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
geometric albedo albedo 0.064   0.003 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

83991 (2002 MS1)          Discovered 2002-Jun-20 by LINEAR at Socorro
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Sep-25 10:41 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin