VLA calibrator information for 1219+4829

This page summarizes the information for 1219+4829 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
 ===================================================================
 1219+484   J2000  A 12h19m06.414733s  48d29'56.164970"  Aug01         
 1216+487   B1950  A 12h16m38.565800s  48d46'34.976000"
 -----------------------------------------------------
 BAND        A B C D    FLUX(Jy)    UVMIN(kL)  UVMAX(kL)
 =====================================================
  20cm    L  P P P P       0.90
   6cm    C  P P P P       0.80
 3.7cm    X  P P P P       0.82
   2cm    U  S S S S       0.52
 0.7cm    Q  W W W W       0.6

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)
201705210.650J1219+4829
201706090.613J1219+4829
201706100.602J1219+4829
201706140.632J1219+4829
201706290.636J1219+4829
201707200.641J1219+4829
201707220.627J1219+4829
201707230.607J1219+4829
201711020.591J1219+4829
201712260.632J1219+4829
201801220.610J1219+4829
201801250.591J1219+4829
201801260.598J1219+4829
201803270.568J1219+4829
201803280.583J1219+4829
201809070.608J1219+4829
201809080.620J1219+4829
201809090.623J1219+4829
201809150.658J1219+4829
201809160.656J1219+4829
201809170.649J1219+4829
201809200.636J1219+4829
201809240.627J1219+4829
201812020.637J1219+4829
201812290.625J1219+4829
201812310.629J1219+4829
201901010.620J1219+4829
201901020.613J1219+4829
201901080.619J1219+4829
201901110.662J1219+4829
201901130.662J1219+4829
201901140.665J1219+4829
201901150.665J1219+4829
201901180.644J1219+4829
201901190.841J1219+4829
201901240.835J1219+4829
201902140.654J1219+4829
201903270.667J1219+4829
201904280.666J1219+4829
201904300.635J1219+4829
201905020.655J1219+4829
201905110.688J1219+4829
201906230.723J1219+4829
201906250.697J1219+4829
201906250.706J1219+4829
201907150.676J1219+4829
201907220.681J1219+4829
201907220.675J1219+4829
201907250.672J1219+4829
201907270.686J1219+4829
201908100.676J1219+4829
201908310.675J1219+4829
201909220.762J1219+4829
201909240.699J1219+4829
201909270.719J1219+4829
201909290.698J1219+4829
201910080.697J1219+4829
201910110.675J1219+4829
202305120.754J1219+4829
S-band data (filled triangles)
201706140.552J1219+4829
201709250.546J1219+4829
201711200.529J1219+4829
201811180.671J1219+4829
201812020.672J1219+4829
201901230.666J1219+4829
201902170.668J1219+4829
201904210.688J1219+4829
201904270.702J1219+4829
201904280.704J1219+4829
201904300.675J1219+4829
201905020.696J1219+4829
201906160.726J1219+4829
201906230.740J1219+4829
201910110.674J1219+4829
202206180.696J1219+4829
C-band data (open squares)
201706140.565J1219+4829
201711130.592J1219+4829
201811230.702J1219+4829
201811300.716J1219+4829
201903030.704J1219+4829
201903040.693J1219+4829
201903090.681J1219+4829
201903230.679J1219+4829
201904230.597J1219+4829
201905080.714J1219+4829
201908030.640J1219+4829
201908140.691J1219+4829
201909150.684J1219+4829
201909220.652J1219+4829
201909240.657J1219+4829
201909270.679J1219+4829
201910060.610J1219+4829
201910080.650J1219+4829
201910110.625J1219+4829
202104050.693J1219+4829
202107160.626J1219+4829
202110310.606J1219+4829
202207040.645J1219+4829
X-band data (X-crosses)
201706140.655J1219+4829
201802100.775J1219+4829
201903140.662J1219+4829
201903300.692J1219+4829
201904030.706J1219+4829
201905080.726J1219+4829
201908200.566J1219+4829
201908230.573J1219+4829
201909220.622J1219+4829
201909270.643J1219+4829
201910110.593J1219+4829
202002070.644J1219+4829
202002230.621J1219+4829
202006280.640J1219+4829
202012130.644J1219+4829
202103240.614J1219+4829
202104230.616J1219+4829
202104240.615J1219+4829
202108040.558J1219+4829
202205050.508J1219+4829
202205160.593J1219+4829
202206030.600J1219+4829
202206240.629J1219+4829
202207230.567J1219+4829
202208300.602J1219+4829
U-band data (filled squares)
201709080.798J1219+4829
201910110.554J1219+4829
202202230.540J1219+4829
202204240.554J1219+4829
K-band data (open circles)
201706130.764J1219+4829
201706150.793J1219+4829
201706170.781J1219+4829
202002200.630J1219+4829
202204240.490J1219+4829_cal
202204250.483J1219+4829_cal