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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07018662374626002 4.0421e-08  
a 3.399630414034692 3.1546e-08 AU
q 3.161021833288497 1.3483e-07 AU
i 4.53313185345862 4.9056e-06 deg
node 82.64001790911377 6.3568e-05 deg
peri 201.3278597604581 7.2477e-05 deg
M 227.1442002657584 3.6838e-05 deg
tp 2457845.436366870494
(2017-Apr-01.93636687)
0.00023375 JED
period 2289.528140147733
6.27
3.1868e-05
8.725e-08
d
yr
n .1572376393577634 2.1886e-09 deg/d
Q 3.638238994780888 3.376e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1587  
   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      .50675  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-16 13:15:58  

Additional Information
 Earth MOID = 2.14651 AU 
 T_jup = 3.138 
[ 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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