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 ]  
1745 Ferguson (1941 SY1)
Classification: Main-belt Asteroid          SPK-ID: 2001745
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05741866384571244 3.3015e-08  
a 2.84523651736119 1.009e-08 au
q 2.681866838209282 9.2345e-08 au
i 3.255844601842409 3.2407e-06 deg
node 78.64612519707181 6.5606e-05 deg
peri 338.2941117570684 7.361e-05 deg
M 100.7839418234186 3.2667e-05 deg
tp 2458509.744893300728
(2019-Jan-26.24489330)
0.00015924 TDB
period 1752.976071538073
4.80
9.3245e-06
2.553e-08
d
yr
n .2053650394007566 1.0924e-09 deg/d
Q 3.008606196513097 1.0669e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3021  
   data-arc span      28713 days (78.61 yr)  
   first obs. used      1941-09-17  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41763  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 01:29:18  

Additional Information
 Earth MOID = 1.69407 au 
 Jupiter MOID = 2.19192 au 
 T_jup = 3.303 
[ 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 11.9   n/a MPO267714  
diameter diameter 12.113 km 0.123 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
geometric albedo albedo 0.209   0.031 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

1745 Ferguson (1941 SY1)          Discovered 1941-Sep-17 by Willis, J. at Washington
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1941 SY1 = 1951 WN1 = 1954 LA = 1955 QC1 = 1965 UT1 = 9584 P-L 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-May-28 19:59 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin