ASTROSAT CZTI

Data Quality Report

Orbit 32792

Creation date: 2024-06-27T20:42:04.752485
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/AS1T04_064T01_9000004730_32792cztM0_level2.evt modeM0/AS1T04_064T01_9000004730_32792cztM0_level2_quad_clean.evt
Size (bytes)650,684,16072,679,680
Size620.5 MB 69.3 MB
Events in quadrant A4,478,307431,540
Events in quadrant B3,426,541471,052
Events in quadrant C3,184,329466,328
Events in quadrant D8,212,872413,249

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0172063
B0138232
C0132412
D0285562

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A598360510.111984%
B59831262.105967%
C5983991.654688%
D598382913.855925%

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 7266 5984 400 400 5.51% 6.68%
B 7266 5984 79 79 1.09% 1.32%
C 7266 5984 72 72 0.99% 1.20%
D 7266 5984 804 804 11.07% 13.44%

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 15 237 1784188 13128.8 668 655 135.8
A 14 63 43511 315.47 668 655 135.8
A 7 16 18827 133.77 668 655 135.8
B 5 172 279816 2083.67 701 687 134.0
B 0 219 148920 1106.55 701 687 134.0
B 12 1 64436 475.88 701 687 134.0
C 0 10 249214 1581.8 675 680 157.1
C 3 233 198554 1259.37 675 680 157.1
C 15 159 21246 130.89 675 680 157.1
D 8 195 2549755 15467.94 646 633 164.8
D 10 203 867787 5261.85 646 633 164.8
D 12 6 529175 3207.17 646 633 164.8

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