VLA calibrator information for 0403+2600

This page summarizes the information for 0403+2600 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
 ===================================================================
 0403+260   J2000  A 04h03m05.586048s  26d00'01.502740"  Aug01         
 0400+258   B1950  A 04h00m03.594800s  25d51'46.489000"
 -----------------------------------------------------
 BAND        A B C D    FLUX(Jy)    UVMIN(kL)  UVMAX(kL)
 =====================================================
  20cm    L  P P P P       1.70
   6cm    C  P P P P       1.27
 3.7cm    X  P P P P       0.74
   2cm    U  S S S S       0.90
 0.7cm    Q  W W W W       0.4

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)
201801191.478J0403+2600
201901071.318J0403+2600
201902021.271J0403+2600
201907261.317J0403+2600
201909081.351J0403+2600
201910161.199J0403+2600
S-band data (filled triangles)
201812291.244J0403+2600
201901211.296J0403+2600
201902221.210J0403+2600
201902221.200J0403+2600
201902231.210J0403+2600
201902231.205J0403+2600
201902231.215J0403+2600
201903231.190J0403+2600
202112111.242J0403+2600
C-band data (open squares)
201812061.113J0403+2600
201812221.061J0403+2600
201901011.062J0403+2600
201901241.055J0403+2600
201901301.027J0403+2600
201902031.039J0403+2600
201902041.033J0403+2600
201902091.046J0403+2600
201910101.057J0403+2600
201910101.058J0403+2600
201910171.049J0403+2600
201910211.017J0403+2600
202101091.184J0403+2600
202101101.166J0403+2600
202101121.176J0403+2600
X-band data (X-crosses)
201705211.042J0403+2600
201709050.962J0403+2600
201709080.959J0403+2600
201711051.033J0403+2600
201711101.042J0403+2600
201711101.055J0403+2600
201711121.061J0403+2600
201711141.036J0403+2600
201801171.015J0403+2600
201801181.004J0403+2600
201801191.004J0403+2600
201801221.001J0403+2600
201801241.017J0403+2600
201802250.974J0403+2600
201802250.976J0403+2600
201803250.953J0403+2600
201812160.914J0403+2600
201901010.932J0403+2600
201908030.815J0403+2600
202101231.048J0403+2600
U-band data (filled squares)
201901060.858J0403+2600
201901100.826J0403+2600
202012180.878J0403+2600
202012290.874J0403+2600
202012300.876J0403+2600
202101140.925J0403+2600
K-band data (open circles)
202012300.778J0403+2600
202101130.751J0403+2600
202110020.703J0403+2600
202110020.691J0403+2600
202110110.709J0403+2600
A-band data (6-pointed stars)
201811170.507J0403+2600
201906030.643J0403+2600
201906260.607J0403+2600
202101280.623J0403+2600
Q-band data (filled circles)
202101160.517J0403+2600
202101290.526J0403+2600
202102020.486J0403+2600
202102030.534J0403+2600
202110310.422J0403+2600
202111010.435J0403+2600
202111030.432J0403+2600
202111070.404J0403+2600
202112160.411J0403+2600
202201030.378J0403+2600
202203120.433J0403+2600
202203160.427J0403+2600
202203280.431J0403+2600
202204240.446J0403+2600