GMRT Calibrator Manual

This is the present status of GMRT Calibrator List. New sources would be populated on a regular basis from now onwards. If you know of any errors, please inform ssd@gmrt.ncra.tifr.res.in.

In most observing sessions, calibrator sources are observed at least once an hour and sometimes as frequently as every 10 min. Calibrator observations are important for finding the occasional amplitude and phase variations/jumps, i.e., tracking instrumental gain and phase drifts, atmospheric and ionospheric gain and phase variations, and for monitoring the quality and sensitivity of the data.

About the GMRT calibrator manual

Sample Selection

GMRT Data

Future Plans

The List of Calibrators

log(Flux Density Sν) vs log(Frequency ν) Plots

0010-418
RA:00h10m52.519686s & DEC:-41d53'10.790750" (J2000)
235MHz
Sν (3.57 Jy)
Visplot
Quick Look
FITS Image
C.C. MODEL
610MHz
Sν (6.68 Jy)
Visplot
Quick Look
FITS Image
C.C. MODEL
0024-420
RA:00h24m42.989921s & DEC:-42d02'03.950200" (J2000)
235MHz
Sν (Jy)
Visplot
Quick Look
FITS Image
C.C. MODEL
610MHz
Sν (1.23 Jy)
Visplot
Quick Look
FITS Image
C.C. MODEL
0029+349
RA:00h29m14.242456s & DEC:34d56'32.246560" (J2000)
235MHz
Sν (1.02 Jy)
Visplot
Quick Look
FITS Image
C.C. MODEL
610MHz
Sν (1.93 Jy)
Visplot
Quick Look
FITS Image
C.C. MODEL
0059+001
RA:00h59m05.514924s & DEC:00d06'51.621710" (J2000)
235MHz
Sν (4.70 Jy)
Visplot
Quick Look
FITS Image
C.C. MODEL
610MHz
Sν (3.61 Jy)
Visplot
Quick Look
FITS Image
C.C. MODEL
0102+584
RA:01h02m45.762384s & DEC:58d24'11.136620" (J2000)
235MHz
Sν (0.88 Jy)
Visplot
Quick Look
FITS Image
C.C. MODEL
610MHz
Sν (1.52 Jy)
Visplot
Quick Look
FITS Image
C.C. MODEL
0110+565
RA:01h10m57.5610s & DEC:56d32'16.932" (J2000)
235MHz
Sν (3.93 Jy)
Visplot
Quick Look
FITS Image
C.C. MODEL
610MHz
Sν (2.78 Jy)
Visplot
Quick Look
FITS Image
C.C. MODEL
0119+321
RA:01h19m35.000447s & DEC:32d10'50.054290" (J2000)
235MHz
Sν (4.15 Jy)
Visplot
Quick Look
FITS Image
C.C. MODEL
610MHz
Sν (3.77 Jy)
Visplot
Quick Look
FITS Image
C.C. MODEL
0136+478
RA:01h36m58.594810s & DEC:47d51'29.100060" (J2000)
235MHz
Sν (1.09 Jy)
Visplot
Quick Look
FITS Image
C.C. MODEL
610MHz
Sν (1.24 Jy)
Visplot
Quick Look
FITS Image
C.C. MODEL
0217+738
RA:02h17m30.813363s & DEC:73d49'32.621760" (J2000)
235MHz
Sν (0.93 Jy)
Visplot
Quick Look
FITS Image
C.C. MODEL
610MHz
Sν (1.96 Jy)
Visplot
Quick Look
FITS Image
C.C. MODEL
0238+166
RA:02h38m38.930108s & DEC:16d36'59.274710" (J2000)
235MHz
Sν (0.96 Jy)
Visplot
Quick Look
FITS Image
C.C. MODEL
610MHz
Sν (1.49 Jy)
Visplot
Quick Look
FITS Image
C.C. MODEL
0240-231
RA:02h40m08.174510s & DEC:-23d09'15.730850" (J2000)
235MHz
Sν (2.16 Jy)
Visplot
Quick Look
FITS Image
C.C. MODEL
610MHz
Sν (5.44 Jy)
Visplot
Quick Look
FITS Image
C.C. MODEL
0303+472
RA:03h03m35.242226s & DEC:47d16'16.275460" (J2000)
235MHz
Sν (1.74 Jy)
Visplot
Quick Look
FITS Image
C.C. MODEL
610MHz
Sν (0.94 Jy)
Visplot
Quick Look
FITS Image
C.C. MODEL
0410+769
RA:04h10m45.6057s & DEC:76d56'45.301" (J2000)
235MHz
Sν (9.65 Jy)
Visplot
Quick Look
FITS Image
C.C. MODEL
610MHz
Sν (8.15 Jy)
Visplot
Quick Look
FITS Image
C.C. MODEL
0414+343
RA:04h14m37.255748s & DEC:34d18'51.207380" (J2000)
235MHz
Sν (1.50 Jy)
Visplot
Quick Look
FITS Image
C.C. MODEL
610MHz
Sν (1.97 Jy)
Visplot
Quick Look
FITS Image
C.C. MODEL
0438+488
RA:04h38m59.1078s & DEC:48d48'46.582" (J2000)
235MHz
Sν (3.95 Jy)
Visplot
Quick Look
FITS Image
C.C. MODEL
610MHz
Sν (2.36 Jy)
Visplot
Quick Look
FITS Image
C.C. MODEL
0555+398
RA:05h55m30.805608s & DEC:39d48'49.165000" (J2000)
235MHz
Sν (Jy)
Visplot
Quick Look
FITS Image
C.C. MODEL
610MHz
Sν (0.49 Jy)
Visplot
Quick Look
FITS Image
C.C. MODEL
0607-085
RA:06h07m59.699243s & DEC:-08d34'49.978150" (J2000)
235MHz
Sν (3.57 Jy)
Visplot
Quick Look
FITS Image
C.C. MODEL
610MHz
Sν (3.02 Jy)
Visplot
Quick Look
FITS Image
C.C. MODEL
0632+103
RA:06h32m15.3269s & DEC:10d22'01.676" (J2000)
235MHz
Sν (3.74 Jy)
Visplot
Quick Look
FITS Image
C.C. MODEL
610MHz
Sν (2.69 Jy)
Visplot
Quick Look
FITS Image
C.C. MODEL
0739+016
RA:07h39m18.033894s & DEC:01d37'04.618030" (J2000)
235MHz
Sν (1.50 Jy)
Visplot
Quick Look
FITS Image
C.C. MODEL
610MHz
Sν (1.64 Jy)
Visplot
Quick Look
FITS Image
C.C. MODEL
1130-148
RA:11h30m07.052580s & DEC:-14d49'27.388160" (J2000)
235MHz
Sν (4.87 Jy)
Visplot
Quick Look
FITS Image
C.C. MODEL
610MHz
Sν (5.85 Jy)
Visplot
Quick Look
FITS Image
C.C. MODEL
1150-003
RA:11h50m43.870761s & DEC:-00d23'54.204900" (J2000)
235MHz
Sν (3.20 Jy)
Visplot
Quick Look
FITS Image
C.C. MODEL
610MHz
Sν (3.64 Jy)
Visplot
Quick Look
FITS Image
C.C. MODEL
1254+116
RA:12h54m38.255601s & DEC:11d41'05.895070" (J2000)
235MHz
Sν (0.54 Jy)
Visplot
Quick Look
FITS Image
C.C. MODEL
610MHz
Sν (0.85 Jy)
Visplot
Quick Look
FITS Image
C.C. MODEL
1313+675
RA:13h13m27.9848s & DEC:67d35'50.376" (J2000)
235MHz
Sν (6.39 Jy)
Visplot
Quick Look
FITS Image
C.C. MODEL
610MHz
Sν (4.38 Jy)
Visplot
Quick Look
FITS Image
C.C. MODEL
1400+621
RA:14h00m28.6526s & DEC:62d10'38.526" (J2000)
235MHz
Sν (Jy)
Visplot
Quick Look
FITS Image
C.C. MODEL
610MHz
Sν (6.96 Jy)
Visplot
Quick Look
FITS Image
C.C. MODEL
1445+099
RA:14h45m16.465213s & DEC:09d58'36.072440" (J2000)
235MHz
Sν (0.97 Jy)
Visplot
Quick Look
FITS Image
C.C. MODEL
610MHz
Sν (2.39 Jy)
Visplot
Quick Look
FITS Image
C.C. MODEL
1513+236
RA:15h13m40.185630s & DEC:23d38'35.200460" (J2000)
235MHz
Sν (2.14 Jy)
Visplot
Quick Look
FITS Image
C.C. MODEL
610MHz
Sν (2.45 Jy)
Visplot
Quick Look
FITS Image
C.C. MODEL
1602+334
RA:16h02m07.263468s & DEC:33d26'53.072670" (J2000)
235MHz
Sν (2.21 Jy)
Visplot
Quick Look
FITS Image
C.C. MODEL
610MHz
Sν (3.03 Jy)
Visplot
Quick Look
FITS Image
C.C. MODEL
1613+342
RA:16h13m41.064249s & DEC:34d12'47.909090" (J2000)
235MHz
Sν (2.29 Jy)
Visplot
Quick Look
FITS Image
C.C. MODEL
610MHz
Sν (4.29 Jy)
Visplot
Quick Look
FITS Image
C.C. MODEL
1743-038
RA:17h43m58.856137s & DEC:-03d50'04.616680" (J2000)
235MHz
Sν (1.11 Jy)
Visplot
Quick Look
FITS Image
C.C. MODEL
610MHz
Sν (1.29 Jy)
Visplot
Quick Look
FITS Image
C.C. MODEL
1923-210
RA:19h23m32.189815s & DEC:-21d04'33.333080" (J2000)
235MHz
Sν (1.18 Jy)
Visplot
Quick Look
FITS Image
C.C. MODEL
610MHz
Sν (2.48 Jy)
Visplot
Quick Look
FITS Image
C.C. MODEL
1944+548
RA:19h44m31.51s & DEC:+54d48'07.1" (J2000)
235MHz
Sν (0.77 Jy)
Visplot
Quick Look
FITS Image
C.C. MODEL
610MHz
Sν (1.96 Jy)
Visplot
Quick Look
FITS Image
C.C. MODEL
2005+778
RA:20h05m30.998519s & DEC:77d52'43.247610" (J2000)
235MHz
Sν (0.87 Jy)
Visplot
Quick Look
FITS Image
C.C. MODEL
610MHz
Sν (0.55 Jy)
Visplot
Quick Look
FITS Image
C.C. MODEL
2011-067
RA:20h11m14.215847s & DEC:-06d44'03.555190" (J2000)
235MHz
Sν (0.45 Jy)
Visplot
Quick Look
FITS Image
C.C. MODEL
610MHz
Sν (2.24 Jy)
Visplot
Quick Look
FITS Image
C.C. MODEL
2015+371
RA:20h15m28.7333s & DEC:37d10'59.505" (J2000)
235MHz
Sν (1.07 Jy)
Visplot
Quick Look
FITS Image
C.C. MODEL
610MHz
Sν (1.55 Jy)
Visplot
Quick Look
FITS Image
C.C. MODEL
2023+544
RA:20h23m55.844024s & DEC:54d27'35.828990" (J2000)
235MHz
Sν (0.92 Jy)
Visplot
Quick Look
FITS Image
C.C. MODEL
610MHz
Sν (1.33 Jy)
Visplot
Quick Look
FITS Image
C.C. MODEL
2025+337
RA:20h23m55.844024s & DEC:54d27'35.828990" (J2000)
235MHz
Sν (0.92 Jy)
Visplot
Quick Look
FITS Image
C.C. MODEL
610MHz
Sν (1.33 Jy)
Visplot
Quick Look
FITS Image
C.C. MODEL
2202+422
RA:22h02m43.291377s & DEC:42d16'39.979940" (J2000)
235MHz
Sν (2.69 Jy)
Visplot
Quick Look
FITS Image
C.C. MODEL
610MHz
Sν (4.78 Jy)
Visplot
Quick Look
FITS Image
C.C. MODEL
2212+018
RA:22h12m37.9770s & DEC:01d52'51.151" (J2000)
235MHz
Sν (5.35 Jy)
Visplot
Quick Look
FITS Image
C.C. MODEL
610MHz
Sν (4.56 Jy)
Visplot
Quick Look
FITS Image
C.C. MODEL
2236+284
RA:22h36m22.470860s & DEC:28d28'57.413290" (J2000)
235MHz
Sν (0.75 Jy)
Visplot
Quick Look
FITS Image
C.C. MODEL
610MHz
Sν (0.83 Jy)
Visplot
Quick Look
FITS Image
C.C. MODEL
2254+247
RA:22h54m09.341903s & DEC:24d45'23.422800" (J2000)
235MHz
Sν (3.29 Jy)
Visplot
Quick Look
FITS Image
C.C. MODEL
610MHz
Sν (2.58 Jy)
Visplot
Quick Look
FITS Image
C.C. MODEL
2344+824
RA:23h44m03.7718s & DEC:82d26'40.401" (J2000)
235MHz
Sν (5.69 Jy)
Visplot
Quick Look
FITS Image
C.C. MODEL
610MHz
Sν (5.46 Jy)
Visplot
Quick Look
FITS Image
C.C. MODEL
2355+498
RA:23h55m09.458169s & DEC:49d50'08.340000" (J2000)
235MHz
Sν (1.77 Jy)
Visplot
Quick Look
FITS Image
C.C. MODEL
610MHz
Sν (2.74 Jy)
Visplot
Quick Look
FITS Image
C.C. MODEL

By Shilpa Dubal