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 ]  
181173 (2005 SY66)
Classification: Outer Main-belt Asteroid          SPK-ID: 2181173
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1189264569547907 5.7908e-08  
a 3.216507220191938 4.0557e-08 au
q 2.833979412725007 1.9745e-07 au
i 1.863392039898172 7.2729e-06 deg
node 22.61859999635674 0.00019949 deg
peri 270.9490764611734 0.00020188 deg
M 291.9067469024076 3.3922e-05 deg
tp 2459599.044485863774
(2022-Jan-19.54448586)
0.00020239 TDB
period 2107.051849987637
5.77
3.9852e-05
1.091e-07
d
yr
n .1708548368195649 3.2315e-09 deg/d
Q 3.599035027658868 4.538e-08 au
  Orbit Determination Parameters
   # obs. used (total)      175  
   data-arc span      7531 days (20.62 yr)  
   first obs. used      1999-09-05  
   last obs. used      2020-04-18  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .60031  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:29:31  

Additional Information
 Earth MOID = 1.81674 au 
 Jupiter MOID = 1.58317 au 
 T_jup = 3.178 
[ 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 16.24   n/a E2021B55  
diameter diameter 3.415 km 0.974 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.050   0.064 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

181173 (2005 SY66)          Discovered 2005-Sep-27 by Spacewatch at Kitt Peak
Reference: 20080321/Numbers.arcLast Updated: 2008-03-26

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-May-07 20:54 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin