ASTROSAT CZTI

Data Quality Report

Orbit 19198

Creation date: 2024-06-27T17:59:59.386540
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/AS1A05_046T01_9000002838_19198cztM0_level2.evt modeM0/AS1A05_046T01_9000002838_19198cztM0_level2_quad_clean.evt
Size (bytes)408,277,44066,761,280
Size389.4 MB 63.7 MB
Events in quadrant A3,592,779398,592
Events in quadrant B2,662,487423,281
Events in quadrant C2,826,125409,520
Events in quadrant D2,906,179402,108

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0232858818
B0173685911
C0184856719
D0185816258

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A013975894413197646
B0-1-1
C0-1-1
D0-1-1

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A092
B092
C091
D092

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5279601.136579%
B5417821.513753%
C5411851.570874%
D5409641.183213%

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 8658 5524 0 0 0.00% 0.00%
B 8675 5673 5 5 0.06% 0.09%
C 8589 5662 0 0 0.00% 0.00%
D 8801 5681 20 20 0.23% 0.35%

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 8 192 1098569 8428.42 636 623 130.3
A 8 144 37906 286.2 636 623 130.3
A 13 254 8203 58.19 636 623 130.3
B 7 220 53742 415.76 655 637 127.7
B 12 111 15589 117.06 655 637 127.7
B 11 111 13534 100.97 655 637 127.7
C 3 233 249210 1641.45 635 638 151.4
C 14 238 98985 649.44 635 638 151.4
C 13 61 4463 25.26 635 638 151.4
D 10 66 319021 2025.36 641 623 157.2
D 11 176 148502 940.67 641 623 157.2
D 2 234 21778 134.57 641 623 157.2

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