VLA calibrator information for 1445+0958

This page summarizes the information for 1445+0958 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
 ===================================================================
 1445+099   J2000  A 14h45m16.465213s  09d58'36.072440"  Aug01         
 1442+101   B1950  A 14h42m50.483800s  10d11'12.144000"
 -----------------------------------------------------
 BAND        A B C D    FLUX(Jy)    UVMIN(kL)  UVMAX(kL)
 =====================================================
  20cm    L  P P P P       2.60
   6cm    C  P P P P       1.20
 3.7cm    X  P P P P       0.73
   2cm    U  S S S S       0.40
 0.7cm    Q  W W W W       0.1

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)
201705262.213J1445+0958
201708142.288J1445+0958
201708182.281J1445+0958
201708202.323J1445+0958
201708222.294J1445+0958
201708222.282J1445+0958
201708232.270J1445+0958
201708242.287J1445+0958
201803192.190J1445+0958
201805252.176J1445+0958
201809092.293J1445+0958
201809102.285J1445+0958
201809202.296J1445+0958
201809282.269J1445+0958
201905222.195J1445+0958
201905232.207J1445+0958
201905232.221J1445+0958
201905262.210J1445+0958
201905262.205J1445+0958
201905272.207J1445+0958
201905282.213J1445+0958
201907102.219J1445+0958
201907232.249J1445+0958
201907292.224J1445+0958
201907302.226J1445+0958
201909202.199J1445+0958
201909222.223J1445+0958
S-band data (filled triangles)
201901221.399J1445+0958
201905221.391J1445+0958
201908051.413J1445+0958
201908091.400J1445+0958
201908151.402J1445+0958
201909101.298J1445+0958
201909221.416J1445+0958
202206201.372J1445+0958
202305021.411J1445+0958
C-band data (open squares)
201812110.763J1445+0958
201812150.759J1445+0958
201812180.746J1445+0958
201812240.758J1445+0958
201905220.770J1445+0958
201908200.743J1445+0958
201909220.760J1445+0958
202107110.765J1445+0958
202206290.781J1445+0958
X-band data (X-crosses)
201905220.471J1445+0958
201908030.447J1445+0958
201908050.448J1445+0958
201908090.455J1445+0958
201909220.446J1445+0958
202106120.476J1445+0958
202207230.508J1445+0958
U-band data (filled squares)
201909220.306J1445+0958
202105290.335J1445+0958