ASTROSAT CZTI

Data Quality Report

Orbit 33234

Creation date: 2024-06-27T20:46:24.493303
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/AS1A10_067T01_9000004774_33234cztM0_level2.evt modeM0/AS1A10_067T01_9000004774_33234cztM0_level2_quad_clean.evt
Size (bytes)471,084,48061,522,560
Size449.3 MB 58.7 MB
Events in quadrant A2,640,114393,033
Events in quadrant B3,605,302388,013
Events in quadrant C2,937,496380,400
Events in quadrant D4,748,076353,717

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0240

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0105573
B0139922
C0116232
D0178672

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A495790.181561%
B49572324.680250%
C4957511.028848%
D49574098.250958%

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 6990 4958 0 0 0.00% 0.00%
B 6990 4958 145 145 2.07% 2.92%
C 6990 4958 51 51 0.73% 1.03%
D 6990 4958 316 316 4.52% 6.37%

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 47 19040 138.32 674 663 132.9
A 13 6 13939 99.93 674 663 132.9
A 13 254 8484 58.87 674 663 132.9
B 5 172 604486 4932.18 649 634 122.4
B 4 170 179636 1462.06 649 634 122.4
B 0 219 118051 959.05 649 634 122.4
C 0 10 148023 990.07 645 652 148.8
C 10 49 143184 957.57 645 652 148.8
C 3 233 93515 623.88 645 652 148.8
D 8 195 793232 5093.9 634 617 155.6
D 7 80 702888 4513.29 634 617 155.6
D 10 203 191973 1229.79 634 617 155.6

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