ASTROSAT CZTI

Data Quality Report

Orbit 24124

Creation date: 2024-06-27T19:02:23.179286
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/AS1A07_069T01_9000003570_24124cztM0_level2.evt modeM0/AS1A07_069T01_9000003570_24124cztM0_level2_quad_clean.evt
Size (bytes)341,069,76058,628,160
Size325.3 MB 55.9 MB
Events in quadrant A2,411,500362,309
Events in quadrant B2,475,194367,929
Events in quadrant C2,424,102347,809
Events in quadrant D2,673,655342,187

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0103851
B0105171
C0103391
D0113601

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5058130.257019%
B5058250.494267%
C5058400.790826%
D5058160.316331%

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 6048 5059 0 0 0.00% 0.00%
B 6048 5059 0 0 0.00% 0.00%
C 6048 5059 0 0 0.00% 0.00%
D 6048 5059 8 8 0.13% 0.16%

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 2 250 14038 106.2 621 608 126.5
A 13 254 8358 61.28 621 608 126.5
A 3 137 5559 39.15 621 608 126.5
B 12 111 15022 120.73 620 606 119.4
B 11 111 12930 103.21 620 606 119.4
B 14 111 11360 90.06 620 606 119.4
C 14 238 93798 657.24 594 595 141.8
C 7 247 10131 67.24 594 595 141.8
C 3 233 4864 30.1 594 595 141.8
D 8 195 267156 1794.3 601 583 148.6
D 1 52 61313 408.77 601 583 148.6
D 12 218 23203 152.26 601 583 148.6

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