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4264 Karljosephine (1989 TB)
Classification: Main-belt Asteroid          SPK-ID: 2004264
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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.


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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2807604677711759 3.2473e-08  
a 2.421881713516852 5.4336e-09 au
q 1.741913070743404 7.9191e-08 au
i 3.50470682475286 3.9885e-06 deg
node 184.6867079311486 5.0317e-05 deg
peri 197.777285212623 5.0728e-05 deg
M 303.1788399391421 6.3132e-06 deg
tp 2458817.787835744422
(2019-Nov-30.28783574)
2.4318e-05 TDB
period 1376.663566604607
3.77
4.6329e-06
1.268e-08
d
yr
n .2615017995194726 8.8004e-10 deg/d
Q 3.101850356290301 6.9592e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2136  
   data-arc span      16458 days (45.06 yr)  
   first obs. used      1974-11-15  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48956  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 21:42:02  

Additional Information
 Earth MOID = .744711 au 
 Jupiter MOID = 2.35291 au 
 T_jup = 3.456 
[ 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 13.4   n/a MPO435739  
diameter diameter 4.457 km 0.253 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 30.96 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:
[Behrend, R. (2004) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
geometric albedo albedo 0.213   0.035 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

4264 Karljosephine (1989 TB)          Discovered 1989-Oct-02 by Cwach, K. F. J. at Siding Spring
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1989 TB = 1974 VX1 = 1985 PJ1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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