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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 ]

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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 44 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1247514380254055 1.8865e-08  
a 2.213119690024062 4.6464e-09 au
q 1.93702982617122 4.3048e-08 au
i 4.410751115771994 7.7691e-07 deg
node 42.51702045920558 6.1948e-06 deg
peri 24.06835865162233 9.8009e-06 deg
M 70.08336490151065 8.344e-06 deg
tp 2458966.390938148173
(2020-Apr-26.89093815)
2.7542e-05 TDB
period 1202.557302793564
3.29
3.7871e-06
1.037e-08
d
yr
n .2993620338620979 9.4275e-10 deg/d
Q 2.489209553876903 5.226e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3109  
   data-arc span      42554 days (116.51 yr)  
   first obs. used      1904-09-20  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41371  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 19:18:00  

Additional Information
 Earth MOID = .950906 au 
 Jupiter MOID = 2.7714 au 
 T_jup = 3.641 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456652.5 (2013-Dec-26.0) TDB
Reference: JPL 44 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1246268594221871 1.8894e-08  
q 1.937678508876741 4.3108e-08 au
tp 2456560.371393020846
(2013-Sep-24.87139302)
2.5221e-05 TDB
node 42.57024019684899 6.1877e-06 deg
peri 23.80683799124002 9.8001e-06 deg
i 4.413829863429283 7.7688e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      3109  
   data-arc span      42554 days (116.51 yr)  
   first obs. used      1904-09-20  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41371  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 19:18:00  

Additional Information
 Jupiter MOID = 2.7714 au 
 T_jup = 3.641 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.570013862209337E-16 -8.111474436913599E-16 -2.316620213013706E-13 -3.331252529821669E-14 -2.148962498617477E-14 -2.135276942318151E-15
q -8.111474436913599E-16 1.858278570773988E-15 5.307017978193902E-13 7.191314679413296E-14 5.548914432546177E-14 4.300567441478056E-15
tp -2.316620213013706E-13 5.307017978193902E-13 6.361237677216312E-10 -3.702596318213912E-11 1.938014835704183E-10 -9.212691709232401E-12
node -3.331252529821669E-14 7.191314679413296E-14 -3.702596318213912E-11 3.828736886568045E-11 -4.757224002474433E-11 3.504513785905431E-12
peri -2.148962498617477E-14 5.548914432546177E-14 1.938014835704183E-10 -4.757224002474433E-11 9.60413914252133E-11 -5.939696999537221E-12
i -2.135276942318151E-15 4.300567441478056E-15 -9.212691709232401E-12 3.504513785905431E-12 -5.939696999537221E-12 6.035442029386359E-13

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 11.78   n/a E2021B10  
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. 2020-October); 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

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