VLA calibrator information for 0854+2006

This page summarizes the information for 0854+2006 as found in the original VLA calibrator list and, if found there, a link to search the NRAO VLA Archive Survey (NVAS) for calibrator data before 2010. Furthermore, a table with the most recent approximate flux densities, starting from 2017 as mined from the VLA CASA pipeline is presented.

If shown at the top, we have recovered the original, pre-WIDAR ANTSOL flux density solutions from the period roughly 2000-2007; symbols as explained next.
The mined data are plotted (gray, on the left hand side) as function of (log) frequency on the top and as function of time on the bottom. The frequency band symbols in the bottom panel follow the symbols as outlined in the top panel:

4-band  (~75 MHz) horizontal stripe       X-band (~10.0 GHz) cross
P-band (~350 MHz) open triangle        U/Ku-band (~15.0 GHz) filled square
L-band (~1.5 GHz) VLA-Y shape             K-band (~22.2 GHz) open circle
S-band (~3.0 GHz) filled triangle      A/Ka-band (~33.2 GHz) 6-pointed star
C-band (~6.0 GHz) open square             Q-band (~45.0 GHz) filled circle
Assume a 10% flux density error on each point, up to 30% for the higher frequency data points. The dashed lines in the frequency plot indicate the approximate spectral index in the frequency band (tied to the measured flux density).
Depending on the spectral behavior, different receiver observing bands (as indicated with the log-frequency axis) may have very different typical flux densities. Note that there can be significant flux density changes for different array configurations, which start date is indicated at the top of the time-line figure. Calendar years are separated by vertical dotted lines.
If shown, a curve depicts a fit to the (unweighted) average data for each band (if there are more than two bands with measured flux densities). The fit equation is listed at the top where the x-coordinate represents the base-10 log of the frequency (GHz) and the y-coordinate represents the base-10 log of the flux density (mJy/bm). The fit may use more data than shown and is using data with different time stamps, which means typically different flux densitities in a single band for genuine variable sources (and/or observed in different array configurations).
Depending on the variability of the source, array configuration and the quality of the data, this fit may, or may not, be representative for the data!

(Click on the figure for a larger view in a new tab/window)

 Original (outdated) VLA calibrator list information: 
 IAU NAME EQUINOX  PC RA(hh,mm,ss)    DEC(ddd,mm,ss)   POS.REF ALT.NAME
 ===================================================================
 0854+201   J2000  A 08h54m48.874925s  20d06'30.640880"  Aug01         
 0851+202   B1950  A 08h51m57.250600s  20d17'58.417000"
 -----------------------------------------------------
 BAND        A B C D    FLUX(Jy)    UVMIN(kL)  UVMAX(kL)
 =====================================================
  20cm    L  P P P S       1.10            3
   6cm    C  P P P P       2.30
 3.7cm    X  P P P P       2.40
   2cm    U  P P P P       3.00
 1.3cm    K  P P P P       3.05
 0.7cm    Q  S S S S       2.0

Default NVAS search around this position (in new tab/window)

Results from CASA pipeline flux density mining:
Observing date (UT)Flux density (Jy/bm)Source name used
L-band data ("VLA Y-arm" symbols)
201706072.655J0854+2006
201706222.9210854+201
201708192.396J0854+2006
201708202.680J0854+2006
201708262.804J0854+2006
201708272.773J0854+2006
201711222.620J0854+2006
201712312.603J0854+2006
201801292.755J0854+2006
201802202.848J0854+2006
201803052.942J0854+2006
201804092.902J0854+2006
201901222.589J0854+2006
201902252.686J0854+2006
201903302.693J0854+2006
201904042.588J0854+2006
201904212.550J0854+2006
201909172.633J0854+2006
201909252.560J0854+2006
201910202.559J0854+2006
202206203.129J0854+2006
202206253.200J0854+2006
202206283.231J0854+2006
202207013.343J0854+2006
202207033.163J0854+2006
202207033.186J0854+2006
S-band data (filled triangles)
201705283.438J0854+2006
201706073.625J0854+2006
201706223.9430854+201
201708203.804J0854+2006
201709083.886J0854+2006
201712283.395J0854+2006
201712283.407J0854+2006
201812113.972J0854+2006
201901043.840J0854+2006
201901143.873J0854+2006
201902223.831J0854+2006
201909253.638J0854+2006
201910203.361J0854+2006
C-band data (open squares)
201708205.257J0854+2006
201711123.769J0854+2006
201711273.824J0854+2006
201712124.133J0854+2006
201803025.469J0854+2006
201804235.019J0854+2006
201902164.774J0854+2006
201908035.001J0854+2006
201909014.767J0854+2006
201910203.801J0854+2006
202206285.159J0854+2006
X-band data (X-crosses)
201802197.674J0854+2006
201902215.020J0854+2006
201902215.061J0854+2006
201903145.576J0854+2006
201904255.456J0854+2006
201909074.522J0854+2006
201909194.864J0854+2006
201910203.793J0854+2006
202110187.307J0854+2006
U-band data (filled squares)
201706177.567J0854+2006
201909195.183J0854+2006
201910114.328J0854+2006
202101117.444J0854+2006
202101236.995J0854+2006
K-band data (open circles)
202301265.368J0854+2006
A-band data (6-pointed stars)
202101226.910J0854+2006
Q-band data (filled circles)
201706177.887J0854+2006
201811215.372J0854+2006
201811265.220J0854+2006
202104253.937J0854+2006
202201216.895J0854+2006