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3754 Kathleen (1931 FM)
Classification: Main-belt Asteroid          SPK-ID: 2003754
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbit Diagram
Note: Make sure you have Java enabled on your browser to see the applet. This applet is provided as a 3D orbit visualization tool. The applet was implemented using 2-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances. For accurate long-term ephemerides, please instead use our Horizons system.

Note: If the applet has stopped working because of a recent Java upgrade, here is a possible workaround.
Orbit Viewer

Additional Notes: the orbits shown in the applet are color coded. The planets are white lines, and the asteroid/comet is a blue line. The bright white line indicates the portion of the orbit that is above the ecliptic plane, and the darker portion is below the ecliptic plane. Likewise for the asteroid/comet orbit, the light blue indicates the portion above the ecliptic plane, and the dark blue the portion below the ecliptic plane.

Orbit Viewer applet originally written and kindly provided by Osamu Ajiki (AstroArts), and further modified by Ron Baalke (JPL).


Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .109039030255772 5.8176e-08  
a 3.15912686082958 3.0091e-08 AU
q 2.814658731469761 1.9205e-07 AU
i 8.460842108395539 6.3479e-06 deg
node 110.5617297812571 4.1246e-05 deg
peri 56.4672602448372 5.023e-05 deg
M 306.0290962860042 3.346e-05 deg
tp 2457307.972455049366
(2015-Oct-12.47245505)
0.00019296 JED
period 2050.921444716656
5.62
2.9303e-05
8.023e-08
d
yr
n .1755308575700887 2.5079e-09 deg/d
Q 3.503594990189398 3.3372e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1131  
   data-arc span      38269 days (104.77 yr)  
   first obs. used      1909-04-20  
   last obs. used      2014-01-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55902  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 17:54:51  

Additional Information
 Earth MOID = 1.83435 AU 
 T_jup = 3.179 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 10.3 mag n/a MPO267722  
diameter diameter 53.23 km 1.8 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 17
rotation period rot_per 11.17 h n/a Asteroid Lightcurve DataBase (Rev. 2014-Mar-01) Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Behrend, R. (2004) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2005) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Torno, S.; Oliver, R.L.; Ditteon, R. (2008) Minor Planet Bul. 35, 54-55.]
geometric albedo albedo 0.0624   0.005 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 17

3754 Kathleen (1931 FM)          Discovered 1931-Mar-16 by Tombaugh, C. W. at Flagstaff (LO)
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1931 FM = 1925 BF = 1929 WA1 = 1955 MR = 1957 WH1 = 1959 CH1 = 1959 EC1 = 1963 WD = 1977 KR = 1978 NM2 = 1982 DQ4 = 1985 UD4 = 1987 BK = A909 HE 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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