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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 115 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1034259880964925 1.7406e-08  
a 3.048052011403211 7.0723e-09 au
q 2.732804220354332 5.6135e-08 au
i 5.505104103083433 1.7696e-07 deg
node 270.33999015 6.2482e-06 deg
peri 80.45378713796812 1.1753e-05 deg
M 214.2721814648978 1.2488e-05 deg
tp 2459987.313766734182
(2023-Feb-11.81376673)
6.8832e-05 TDB
period 1943.712318427912
5.32
6.7649e-06
1.852e-08
d
yr
n .1852125937500723 6.4462e-10 deg/d
Q 3.363299802452089 7.8038e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3020  
   data-arc span      49792 days (136.32 yr)  
   first obs. used      1884-11-24  
   last obs. used      2021-03-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46261  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 18:05:41  

Additional Information
 Earth MOID = 1.73201 au 
 Jupiter MOID = 2.05264 au 
 T_jup = 3.223 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456799.5 (2014-May-22.0) TDB
Reference: JPL 115 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09961833335986552 1.7332e-08  
q 2.750605891937643 5.5821e-08 au
tp 2456096.399717938087
(2012-Jun-17.89971794)
6.5198e-05 TDB
node 270.47967612487 6.2313e-06 deg
peri 80.53722584708554 1.2068e-05 deg
i 5.508599653852842 1.7681e-07 deg
  Orbit Determination Parameters
   # obs. used (total)      3020  
   data-arc span      49792 days (136.32 yr)  
   first obs. used      1884-11-24  
   last obs. used      2021-03-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46261  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 18:05:41  

Additional Information
 Jupiter MOID = 2.05264 au 
 T_jup = 3.223 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.004086501500644E-16 -9.624337448939277E-16 -5.159372446578114E-13 -2.407534905672404E-14 -5.327753462639402E-14 1.427854833783364E-16
q -9.624337448939277E-16 3.116011534702336E-15 1.712642150150781E-12 7.504143407514196E-14 1.84592397902515E-13 -4.662150854698233E-16
tp -5.159372446578114E-13 1.712642150150781E-12 4.250798441411867E-9 -1.737528147196413E-12 6.696140669247383E-10 9.697471485264346E-13
node -2.407534905672404E-14 7.504143407514196E-14 -1.737528147196413E-12 3.88294374786702E-11 -3.942479530916755E-11 -2.626883433407639E-13
peri -5.327753462639402E-14 1.84592397902515E-13 6.696140669247383E-10 -3.942479530916755E-11 1.456256710213072E-10 4.527422802604045E-13
i 1.427854833783364E-16 -4.662150854698233E-16 9.697471485264346E-13 -2.626883433407639E-13 4.527422802604045E-13 3.126307390827214E-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 7.79   n/a E2021B10 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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