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241 Germania (A884 RA)
Classification: Main-belt Asteroid          SPK-ID: 2000241
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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 119 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1036223935141907 1.7328e-08  
a 3.047467798178392 6.8203e-09 au
q 2.731681890773726 5.5763e-08 au
i 5.505391411577995 1.7697e-07 deg
node 270.3354896863703 6.2431e-06 deg
peri 80.51679318711116 1.1702e-05 deg
M 250.52913232035 1.245e-05 deg
tp 2459987.385284429437
(2023-Feb-11.88528443)
6.8206e-05 TDB
period 1943.153524799734
5.32
6.5232e-06
1.786e-08
d
yr
n .1852658554280225 6.2194e-10 deg/d
Q 3.363253705583058 7.527e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3255  
   data-arc span      49931 days (136.70 yr)  
   first obs. used      1884-11-24  
   last obs. used      2021-08-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45629  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 06:23:24  

Additional Information
 Earth MOID = 1.73184 au 
 Jupiter MOID = 2.05259 au 
 T_jup = 3.223 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456813.5 (2014-Jun-05.0) TDB
Reference: JPL 119 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09971756513203313 1.7269e-08  
q 2.750105207109916 5.5533e-08 au
tp 2456096.466765093190
(2012-Jun-17.96676509)
6.4916e-05 TDB
node 270.4759156987864 6.2272e-06 deg
peri 80.53220255161108 1.2021e-05 deg
i 5.508162494653372 1.7678e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      3255  
   data-arc span      49931 days (136.70 yr)  
   first obs. used      1884-11-24  
   last obs. used      2021-08-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45629  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 06:23:24  

Additional Information
 Jupiter MOID = 2.05259 au 
 T_jup = 3.223 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.982256498619997E-16 -9.542527474635288E-16 -5.104818520899329E-13 -2.394356841280496E-14 -5.246008657941813E-14 1.434256704320397E-16
q -9.542527474635288E-16 3.08393602840581E-15 1.688501219696036E-12 7.466452438776775E-14 1.807554431158672E-13 -4.66269453713224E-16
tp -5.104818520899329E-13 1.688501219696036E-12 4.214147703755382E-9 -1.588859091202052E-12 6.633213879356846E-10 9.767984040315266E-13
node -2.394356841280496E-14 7.466452438776775E-14 -1.588859091202052E-12 3.877860303877896E-11 -3.935087671973864E-11 -2.628446068585243E-13
peri -5.246008657941813E-14 1.807554431158672E-13 6.633213879356846E-10 -3.935087671973864E-11 1.444942993252275E-10 4.54074608752942E-13
i 1.434256704320397E-16 -4.66269453713224E-16 9.767984040315266E-13 -2.628446068585243E-13 4.54074608752942E-13 3.125091094434048E-14

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 7.77   n/a MPO636063 IRAS observations used: 17
diameter diameter 168.90 km 3.1 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 17
rotation period rot_per 15.51 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Lagerkvist, C.-I.; Magnusson, P.; Debehogne, H.; Hoffmann, M.; et al. (1992) Astron. Astrophys. Suppl. Ser. 95, 461-470.]
[Lopez-Gonzalez, M.J.; Rodriguez, E. (2000) Astron. Astrophys. Suppl. Ser. 145, 255-261.]
[Riccioli, D.; Blanco, C.; Cigna, M. (2001) Planet. Space Sci. 49, 657-671.]
geometric albedo albedo 0.0575   0.002 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 17
B-V BV 0.689   0.015 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=6; phase (min.=3.04, mean=10.45, max.=18.30) deg.
U-B UB 0.289   0.034 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=6; phase (min.=3.04, mean=10.45, max.=18.30) deg.
Tholen spectral type spec_T CP   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices; used ground-based radiometric albedo
SMASSII spectral type spec_B B   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

241 Germania (A884 RA)          Discovered 1884-Sep-12 by Luther, R. at Dusseldorf
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 A884 RA = 1953 US = 1953 VK1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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