ASTROSAT CZTI

Data Quality Report

Orbit 32197

Creation date: 2024-06-27T20:37:29.392711
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/AS1A09_131T01_9000004690_32197cztM0_level2.evt modeM0/AS1A09_131T01_9000004690_32197cztM0_level2_quad_clean.evt
Size (bytes)1,121,132,160199,442,880
Size1.0 GB 190.2 MB
Events in quadrant A5,933,4141,319,195
Events in quadrant B9,626,2021,328,828
Events in quadrant C7,431,1931,295,396
Events in quadrant D10,115,7451,228,932

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02520
B02520
C02520
D02520

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0259682
B0385421
C0301511
D0388471

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A125612592.061938%
B125614493.574556%
C125617586.034551%
D125617205.732028%

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 13136 12562 1 1 0.01% 0.01%
B 13136 12562 38 38 0.29% 0.30%
C 13136 12562 38 38 0.29% 0.30%
D 13136 12562 434 434 3.30% 3.45%

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 12 96 40877 129.26 1519 1485 304.7
A 13 6 24787 76.46 1519 1485 304.7
A 13 254 23482 72.18 1519 1485 304.7
B 6 159 3369751 11885.07 1497 1458 283.4
B 5 172 114812 399.97 1497 1458 283.4
B 0 190 88798 308.18 1497 1458 283.4
C 3 233 1082642 3239.32 1435 1442 333.8
C 14 238 311350 928.5 1435 1442 333.8
C 0 10 266335 793.63 1435 1442 333.8
D 8 195 2585780 7592.66 1440 1400 340.4
D 12 233 669197 1961.92 1440 1400 340.4
D 2 250 538544 1578.08 1440 1400 340.4

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