ASTROSAT CZTI

Data Quality Report

Orbit 59393

Creation date: 2026-09-19T11:47:03.324161
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_59393cztM0_level2.fits modeM0/AS1A14_033T01_9000006608_59393cztM0_level2_quad_clean.evt
Size (bytes)1,327,008,960282,980,160
Size1.2 GB 269.9 MB
Events in quadrant A9,057,0471,848,291
Events in quadrant B11,343,3881,985,707
Events in quadrant C9,382,4351,810,770
Events in quadrant D17,792,0091,546,675

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04060
B04060
C04060
D04060

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0420964
B0479764
C0428724
D0671304

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A199841880.940753%
B199855672.837128%
C199851920.960721%
D1998517068.536402%

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 21334 19988 45 45 0.21% 0.23%
B 21335 19989 220 220 1.03% 1.10%
C 21335 19989 103 103 0.48% 0.52%
D 21335 19989 1618 1618 7.58% 8.09%

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 316914 585.97 2179 2124 537.2
A 3 14 146180 268.15 2179 2124 537.2
A 14 238 89904 163.4 2179 2124 537.2
B 5 185 1504227 3246.71 2158 2073 462.7
B 4 236 819828 1767.47 2158 2073 462.7
B 4 201 110022 233.32 2158 2073 462.7
C 6 223 430119 726.9 2145 2125 588.8
C 2 12 127664 213.22 2145 2125 588.8
C 4 5 104414 173.73 2145 2125 588.8
D 12 110 6134853 10548.79 2055 1965 581.4
D 13 138 1879858 3230.04 2055 1965 581.4
D 7 222 1132329 1944.27 2055 1965 581.4

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