ASTROSAT CZTI

Data Quality Report

Orbit 10698

Creation date: 2024-06-27T16:02:36.172936
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/AS1A03_097T01_9000001540_10698cztM0_level2.evt modeM0/AS1A03_097T01_9000001540_10698cztM0_level2_quad_clean.evt
Size (bytes)509,656,32086,423,040
Size486.0 MB 82.4 MB
Events in quadrant A3,060,529552,493
Events in quadrant B4,618,040545,727
Events in quadrant C2,894,781556,712
Events in quadrant D4,430,559518,527

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133473
B0179852
C0130482
D0175482

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6359360.566127%
B63593355.268124%
C6359140.220160%
D6359921.446768%

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 7474 6360 3 3 0.04% 0.05%
B 7474 6360 187 187 2.50% 2.94%
C 7474 6360 2 2 0.03% 0.03%
D 7474 6360 101 101 1.35% 1.59%

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 4 2 53537 346.73 747 731 152.3
A 15 239 49191 318.19 747 731 152.3
A 1 162 20246 128.14 747 731 152.3
B 4 239 1385287 9804.23 747 729 141.2
B 0 219 157417 1109.53 747 729 141.2
B 0 214 44513 310.04 747 729 141.2
C 14 234 10659 58.0 738 744 171.0
C 14 238 5523 27.95 738 744 171.0
C 13 61 5417 27.33 738 744 171.0
D 2 16 637486 3653.28 724 704 174.3
D 10 199 469947 2692.09 724 704 174.3
D 2 14 182912 1045.35 724 704 174.3

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