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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07060062631010146 3.7595e-08  
a 3.390599654813752 2.4211e-08 au
q 3.151221195617087 1.3158e-07 au
i 4.53248273531657 4.3208e-06 deg
node 82.51331916118028 6.1283e-05 deg
peri 203.6775791097382 6.9702e-05 deg
M 319.4646802850233 3.5163e-05 deg
tp 2457857.270010638090
(2017-Apr-13.77001064)
0.00022254 JED
period 2280.411366671904
6.24
2.4426e-05
6.687e-08
d
yr
n .1578662539844266 1.6909e-09 deg/d
Q 3.629978114010417 2.5921e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1946  
   data-arc span      38213 days (104.62 yr)  
   first obs. used      1911-09-03  
   last obs. used      2016-04-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .48649  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 12:32:21  

Additional Information
 Earth MOID = 2.13526 au 
 Jupiter MOID = 1.47687 au 
 T_jup = 3.140 
[ 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
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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