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JPL Small-Body Database Browser
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1219 Britta (1932 CJ)
Classification: Main-belt Asteroid          SPK-ID: 2001219
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1244453016021832 3.4732e-08  
a 2.212896839524221 5.3226e-09 au
q 1.937512224915112 7.8085e-08 au
i 4.411108092973755 4.0819e-06 deg
node 42.52517153616965 4.4501e-05 deg
peri 24.06555710228304 4.7102e-05 deg
M 250.4354036150538 1.5488e-05 deg
tp 2458966.438347114595
(2020-Apr-26.93834711)
5.2026e-05 TDB
period 1202.375669768402
3.29
4.338e-06
1.188e-08
d
yr
n .2994072560278454 1.0802e-09 deg/d
Q 2.488281454133331 5.9849e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2638  
   data-arc span      42081 days (115.21 yr)  
   first obs. used      1904-09-20  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4344  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 20:55:55  

Additional Information
 Earth MOID = .951706 au 
 Jupiter MOID = 2.77293 au 
 T_jup = 3.642 
[ 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 11.7   n/a MPO435707  
magnitude slope G 0.24   n/a PDS3 (MPC 17261) Fit
diameter diameter 9.860 km 0.337 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 5.575 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Pilcher, F.; Binzel, R.P.; Tholen, D.J. (1985) Minor Planet Bull. 12, 10.]
[Binzel, R.P.; Cochran, A.L.; Barker, E.S.; Tholen, D.J.; et al. (1987) Icarus 71, 148-158.]
[Behrend, R. (2003) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Kryszczynska, A.; Colas, F.; Polinska, M.; Hirsch, R.; et al. (2012) Astron. Astrophys. 546, A72.]
[Klinglesmith III, D.A.; Hanowell, J.; Risley, E.; Turk, J.; et al. (2014) Minor Planet Bull. 41, 139-143.]
[Stephens, R.D. (2014) Minor Planet Bull. 41, 171-175.]
[Durech, J.; Hanus, J.; Oszkiewsicz, D.; Vanco, R. (2016) Astron. Astrophys. 587, A48.]
[Durech, J.; Hanus, J.; Broz, M.; Lehky, M.; et al. (2017) Icarus 304, 101-109.]
geometric albedo albedo 0.346   0.041 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
B-V BV 0.913   0.019 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=5; phase (min.=13.07, mean=17.75, max.=26.33) deg.
U-B UB 0.514   0.020 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=5; phase (min.=13.07, mean=17.75, max.=26.33) deg.

1219 Britta (1932 CJ)          Discovered 1932-Feb-06 by Wolf, M. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1932 CJ = 1947 XG = 1975 FE = A904 SB = A915 BD 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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