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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 117 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1036223976883458 1.739e-08  
a 3.047467793824172 7.0196e-09 au
q 2.731681874150098 5.6079e-08 au
i 5.505391412319154 1.7697e-07 deg
node 270.3354895856922 6.2443e-06 deg
peri 80.51679125669996 1.1729e-05 deg
M 250.5291357650454 1.2524e-05 deg
tp 2459987.385264569796
(2023-Feb-11.88526457)
6.8652e-05 TDB
period 1943.153520635169
5.32
6.7138e-06
1.838e-08
d
yr
n .1852658558250842 6.4012e-10 deg/d
Q 3.363253713498246 7.747e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3182  
   data-arc span      49887 days (136.58 yr)  
   first obs. used      1884-11-24  
   last obs. used      2021-06-26  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45773  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 10:45:30  

Additional Information
 Earth MOID = 1.73184 au 
 Jupiter MOID = 2.05259 au 
 T_jup = 3.223 
[ 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 7.78   n/a MPO614063 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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