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409 Aspasia (1895 CE)
Classification: Main-belt Asteroid          SPK-ID: 2000409
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 72 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0729937245862933 2.8006e-08  
a 2.575684980923153 4.4989e-09 AU
q 2.387676140804596 7.3215e-08 AU
i 11.26054858855747 3.2812e-06 deg
node 242.197955086916 1.5033e-05 deg
peri 353.9301617017621 2.3952e-05 deg
M 117.0328266906375 1.8481e-05 deg
tp 2456509.656844842077
(2013-Aug-05.15684484)
7.7405e-05 JED
period 1509.863008982492
4.13
3.9559e-06
1.083e-08
d
yr
n .2384322272009344 6.247e-10 deg/d
Q 2.76369382104171 4.8273e-09 AU
  Orbit Determination Parameters
   # obs. used (total)      1937  
   data-arc span      43336 days (118.65 yr)  
   first obs. used      1895-12-10  
   last obs. used      2014-08-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5279  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Aug-13 13:52:21  

Additional Information
 Earth MOID = 1.37747 AU 
 T_jup = 3.397 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 7.62 mag n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 12
magnitude slope G 0.29   n/a PDS3 (MPC 17258) Fit
diameter diameter 161.61 km 6.8 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 12
rotation period rot_per 9.022 h n/a Asteroid Lightcurve DataBase (Rev. 2014-Mar-01) Published Reference List:
[Di Martino, M.; Cacciatori, S. (1984) Astron. Astrophys. 130, 206-207.]
[Zappala, V.; Di Martino, M.; Hanslmeier, A.; Schober, H.J. (1985) Astron. Astrophys. 147, 1, 35-38.]
[Hainaut-Rouelle, M.-C.; Hainaut, O.R.; Detal, A. (1995) Astron. Astrophys. Suppl. Ser. 112, 125-142.]
[Piironen, J.; Lagerkvist, C.-I.; Erikson, A.; Oja, T.; et al. (1998) Astron. Astrophys. Suppl. Ser. 128, 525-540.]
[Lopez-Gonzalez, M.J.; Rodriguez, E. (2005) Planetary and Space Science 53, 1147-1165.]
[Warner, B.D.; Durech, J.; Faurerbach, M.; Marks, S. (2008) Minor Planet Bul. 35, 167-171.]
[Durech, J.; Kaasalainen, M.; Herald, D.; Dunham, D.; et al. (2011) Icarus 214, 652-670.]
[Hanus, J.; Marchis, F.; Durech, J. (2013) Icarus 226, 1045-1057.]
geometric albedo albedo 0.0606   0.005 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 12
B-V BV .719 mag .018 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=7; phase (min.=4.66, mean=12.04, max.=19.38) deg.
U-B UB .323 mag .015 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=5; phase (min.=4.66, mean=11.79, max.=19.38) deg.
Tholen spectral type spec_T CX   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices
SMASSII spectral type spec_B Xc   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)

409 Aspasia (1895 CE)          Discovered 1895-Dec-09 by Charlois, A. at Nice
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1895 CE = 1948 RT1 = 1949 CB = A904 AB 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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