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 ]  
74731 (1999 RM176)
Classification: Main-belt Asteroid          SPK-ID: 2074731
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1473145266998684 4.8739e-08  
a 2.175436396498071 6.8355e-09 au
q 1.854963013382291 1.0717e-07 au
i 3.170142379763943 5.3136e-06 deg
node 328.002881049748 5.9966e-05 deg
peri 345.983482242275 6.1131e-05 deg
M 193.1978593845418 1.1837e-05 deg
tp 2459543.521632817337
(2021-Nov-25.02163282)		 3.908e-05 TDB
period 1171.974095134153
3.21		 5.5237e-06
1.512e-08		 d
yr
n .3071740250016292 1.4478e-09 deg/d
Q 2.495909779613851 7.8425e-09 au
   Orbit Determination Parameters
   # obs. used (total)      829  
   data-arc span      7479 days (20.48 yr)  
   first obs. used      1999-08-12  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54664  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 17:21:15  

Additional Information
 Earth MOID = .841268 au 
 Jupiter MOID = 2.75693 au 
 T_jup = 3.669 
[ 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 16.1   n/a MPO453160  
diameter diameter 1.951 km 0.262 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.168   0.054 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74731 (1999 RM176)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 RM176 = 1999 RD256 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jul-09 02:30 UT
(server date/time)   		NASA Home Page
Site Manager:   Ryan S. Park
Webmaster:   Alan B. Chamberlin