ASTROSAT CZTI

Data Quality Report

Orbit 54210

Creation date: 2025-10-05T16:31:30.219608
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/AS1C09_004T08_9000006514_54210cztM0_level2.fits modeM0/AS1C09_004T08_9000006514_54210cztM0_level2_quad_clean.evt
Size (bytes)438,338,88088,358,400
Size418.0 MB 84.3 MB
Events in quadrant A2,987,001597,744
Events in quadrant B2,867,204654,471
Events in quadrant C2,945,062559,422
Events in quadrant D6,956,804441,920

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132041
B0128651
C0133621
D0248121

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60361322.186879%
B6037530.877919%
C6037841.391420%
D6037120719.993374%

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 7146 6036 80 80 1.12% 1.33%
B 7147 6037 5 5 0.07% 0.08%
C 7147 6038 72 72 1.01% 1.19%
D 7147 6038 1247 1247 17.45% 20.65%

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 15 174 150037 920.62 650 635 162.3
A 0 8 91349 558.98 650 635 162.3
A 8 253 74804 457.03 650 635 162.3
B 4 67 154361 1117.23 641 620 137.6
B 0 213 40853 292.37 641 620 137.6
B 4 81 21155 149.23 641 620 137.6
C 1 241 156816 915.48 618 611 170.6
C 12 2 139371 813.24 618 611 170.6
C 1 44 62985 365.56 618 611 170.6
D 8 176 3594949 21892.02 574 548 164.2
D 11 247 565605 3441.53 574 548 164.2
D 2 172 161830 982.3 574 548 164.2

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