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
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
1725 CrAO (1930 SK)
Classification: Main-belt Asteroid          SPK-ID: 2001725
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08798761042084458 3.7449e-08  
a 2.90316625212985 1.1161e-08 au
q 2.647723590950506 1.0866e-07 au
i 3.170887813536503 3.4202e-06 deg
node 119.0855722053418 7.1934e-05 deg
peri 229.2606100611252 7.4361e-05 deg
M 338.0151351250382 1.8574e-05 deg
tp 2458710.838629899230
(2019-Aug-15.33862990)
9.3188e-05 TDB
period 1806.784212213265
4.95
1.0419e-05
2.853e-08
d
yr
n .1992490290575481 1.149e-09 deg/d
Q 3.158608913309195 1.2143e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2648  
   data-arc span      38065 days (104.22 yr)  
   first obs. used      1915-09-09  
   last obs. used      2019-11-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45099  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-03 20:25:56  

Additional Information
 Earth MOID = 1.64133 au 
 Jupiter MOID = 2.20131 au 
 T_jup = 3.278 
[ 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 11.2   n/a MPO452184  
diameter diameter 16.089 km 1.649 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 21.45 h n/a LCDB (Rev. 2019-January); 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:
[Slivan, S.M.; Binzel, R.P.; Boroumand, S.C.; Pan M.W.; et al. (2008) Icarus 195, 226-276.]
geometric albedo albedo 0.220   0.236 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

1725 CrAO (1930 SK)          Discovered 1930-Sep-20 by Neujmin, G. at Simeis
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1930 SK = 1933 DF = 1950 TV3 = 1960 WL = 1965 UJ = A906 YP = A915 RK 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2019-Dec-11 17:12 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin