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1154 Astronomia (1927 CB)
Classification: Outer Main-belt Asteroid          SPK-ID: 2001154
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06986106917700953 5.073e-08  
a 3.403873522722314 2.8343e-08 AU
q 3.16607527908162 1.7261e-07 AU
i 4.542855852761342 6.0178e-06 deg
node 82.77569415516466 7.3721e-05 deg
peri 199.5341150598664 8.7302e-05 deg
M 197.5764037307753 4.8791e-05 deg
tp 2457835.416164347716
(2017-Mar-22.91616435)
0.00031061 JED
period 2293.815847714798
6.28
2.865e-05
7.844e-08
d
yr
n .1569437234286476 1.9603e-09 deg/d
Q 3.641671766363009 3.0323e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1552  
   data-arc span      37474 days (102.60 yr)  
   first obs. used      1911-09-03  
   last obs. used      2014-04-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52152  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Apr-17 13:37:41  

Additional Information
 Earth MOID = 2.14959 AU 
 T_jup = 3.137 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 10.51 mag n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 17
diameter diameter 61.08 km 1.8 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 17
geometric albedo albedo 0.0296   0.002 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 17
B-V BV .658 mag .041 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=1; phase=15.86 deg.
U-B UB .229 mag .066 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.1 #obs=1; phase=15.86 deg.
Tholen spectral type spec_T FXU:   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 7 color indices

1154 Astronomia (1927 CB)          Discovered 1927-Feb-08 by Reinmuth, K. at Heidelberg (024)
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1927 CB = A911 RA 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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