ASTROSAT CZTI

Data Quality Report

Orbit 59397

Creation date: 2026-09-19T16:14:14.679947
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A14_033T01_9000006608_59397cztM0_level2.fits modeM0/AS1A14_033T01_9000006608_59397cztM0_level2_quad_clean.evt
Size (bytes)420,024,96099,846,720
Size400.6 MB 95.2 MB
Events in quadrant A3,212,222650,539
Events in quadrant B3,486,704700,358
Events in quadrant C3,226,952634,283
Events in quadrant D5,107,172577,158

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141612
B0149592
C0142432
D0197292

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66191492.251095%
B66192303.474845%
C66201081.631420%
D66203124.712991%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 8639 6621 29 29 0.34% 0.44%
B 8639 6621 68 68 0.79% 1.03%
C 8640 6622 23 23 0.27% 0.35%
D 8640 6622 191 191 2.21% 2.88%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 10 251 150195 819.82 753 735 182.3
A 14 238 73341 398.26 753 735 182.3
A 3 245 27877 148.88 753 735 182.3
B 4 236 250478 1576.28 740 711 158.5
B 6 255 165956 1042.86 740 711 158.5
B 7 252 36878 228.25 740 711 158.5
C 6 223 195849 972.75 732 727 200.6
C 15 208 43270 212.09 732 727 200.6
C 12 252 34516 168.45 732 727 200.6
D 12 110 1915282 9405.64 720 685 203.6
D 3 12 293743 1439.68 720 685 203.6
D 5 173 33600 161.7 720 685 203.6

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter

TCT plots

Parameter TCT0 TCT_healed
Tct