VLA calibrator information for 0735-1735

This page summarizes the information for 0735-1735 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
 ===================================================================
 0735-175   J2000  A 07h35m45.812488s -17d35'48.502230"  Aug01         
 0733-174   B1950  A 07h33m31.412600s -17d29'06.331000"
 -----------------------------------------------------
 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       1.75
 3.7cm    X  P P P P       1.43
   2cm    U  P P P P       1.00
 0.7cm    Q  W W W W       0.4

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

WARNING: multiple positions found, using first one 113.9408750 -17.5968056 113.9408854 -17.5968062 Results from CASA pipeline flux density mining:
Observing date (UT)Flux density (Jy/bm)Source name used
C-band data (open squares)
201708281.158J0735-1735
X-band data (X-crosses)
201708280.786J0735-1735
201908252.449J0735-1735
201909132.592J0735-1735
201712161.882J0735-1735
201801101.876J0735-1735
201801101.894J0735-1735
201801131.880J0735-1735
201801131.889J0735-1735
201801141.891J0735-1735
201801141.896J0735-1735
201802101.870J0735-1735
201802101.911J0735-1735
201802161.973J0735-1735
201802171.904J0735-1735
201802181.894J0735-1735
201904111.793J0735-1735
201904111.798J0735-1735
201904171.788J0735-1735
201904171.795J0735-1735
202010201.963J0735-1735
202010211.969J0735-1735
202010221.982J0735-1735
202010261.988J0735-1735
202010301.975J0735-1735
202010311.980J0735-1735
202201311.935J0735-1735
202202071.923J0735-1735
202202111.904J0735-1735
202202131.904J0735-1735
202202151.920J0735-1735
202202181.971J0735-1735
201706021.177J0735-1735
201805031.073J0735-1735
201802250.744J0735-1735
201802250.746J0735-1735
202103090.728J0735-1735
K-band data (open circles)
202207040.331J0735-1735