VLA calibrator information for 1120+1420

This page summarizes the information for 1120+1420 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
 ===================================================================
 1120+143   J2000  C 11h20m27.807267s  14d20'54.991600"  Aug01         
 1117+146   B1950  C 11h17m50.991000s  14d37'21.143000"
 -----------------------------------------------------
 BAND        A B C D    FLUX(Jy)    UVMIN(kL)  UVMAX(kL)
 =====================================================
  20cm    L  P P P P       2.42
   6cm    C  S P P P       1.10                      300
 3.7cm    X  S P P P       0.66                      300
   2cm    U  X S S S       0.3                       300
 0.7cm    Q  W W W W       0.11

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)
201705242.461J1120+1420
201706012.453J1120+1420
201706042.455J1120+1420
201706052.451J1120+1420
201706102.447J1120+1420
201803192.343J1120+1420
201809082.380J1120+1420
201809142.444J1120+1420
201809172.333J1120+1420
201809292.430J1120+1420
201809302.425J1120+1420
201809302.416J1120+1420
201810012.390J1120+1420
201810012.451J1120+1420
201810052.430J1120+1420
201810072.461J1120+1420
201810072.451J1120+1420
201810082.454J1120+1420
201810092.450J1120+1420
201810092.428J1120+1420
201810192.445J1120+1420
201810232.427J1120+1420
201811142.468J1120+1420
201812162.217J1120+1420
201812172.305J1120+1420
201903112.343J1120+1420
201903152.290J1120+1420
201903192.328J1120+1420
201904272.325J1120+1420
201906092.333J1120+1420
201907162.347J1120+1420
201907202.342J1120+1420
201908272.307J1120+1420
201909100.104J1120+1420
201909142.308J1120+1420
201909172.328J1120+1420
201910012.305J1120+1420
201910052.312J1120+1420
201910062.292J1120+1420
202109032.310J1120+1420
202110192.313J1120+1420
202201282.345J1120+1420
202304092.341J1120+1420
202304102.353J1120+1420
202304112.349J1120+1420
202304122.343J1120+1420
S-band data (filled triangles)
201901131.467J1120+1420
201901311.472J1120+1420
201903051.470J1120+1420
201909301.454J1120+1420
202206181.487J1120+1420
C-band data (open squares)
201711280.851J1120+1420
201901120.824J1120+1420
201909140.856J1120+1420
201909170.858J1120+1420
201910070.788J1120+1420
202106110.839J1120+1420
202107090.829J1120+1420
202107100.840J1120+1420
202109190.886J1120+1420
202110040.840J1120+1420
202110100.835J1120+1420
202111190.831J1120+1420
202112020.863J1120+1420
202206170.849J1120+1420
202207020.819J1120+1420
202207040.839J1120+1420
X-band data (X-crosses)
202103210.514J1120+1420
202107170.515J1120+1420
202203050.515J1120+1420
202207230.524J1120+1420
K-band data (open circles)
201811230.230J1120+1420