ASTROSAT CZTI

Data Quality Report

Orbit 04448

Creation date: 2024-06-27T14:42:12.179099
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/AS1G05_253T01_9000000560_04448cztM0_level2.evt modeM0/AS1G05_253T01_9000000560_04448cztM0_level2_quad_clean.evt
Size (bytes)804,617,280148,570,560
Size767.3 MB 141.7 MB
Events in quadrant A5,856,866912,616
Events in quadrant B5,907,122912,797
Events in quadrant C5,619,420919,812
Events in quadrant D6,130,790884,769

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A026410
B026414
C02648
D02646

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B051
C050
D050

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A027215909
B027243850
C026934809
D028695919

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A125552301.831939%
B125802321.844197%
C126031381.094977%
D125633092.459604%

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 13535 12938 8 8 0.06% 0.06%
B 13535 12940 9 9 0.07% 0.07%
C 13535 12944 18 18 0.13% 0.14%
D 13535 12946 161 161 1.19% 1.24%

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 47 129129 436.27 1432 1401 292.8
A 0 118 114005 384.61 1432 1401 292.8
A 8 15 43987 145.46 1432 1401 292.8
B 15 204 163997 589.01 1446 1412 276.0
B 15 54 65042 230.52 1446 1412 276.0
B 12 111 24192 82.53 1446 1412 276.0
C 14 48 87948 267.64 1394 1400 323.4
C 9 16 54340 163.71 1394 1400 323.4
C 9 247 28007 82.28 1394 1400 323.4
D 8 230 233333 702.02 1383 1343 330.5
D 13 239 200283 602.01 1383 1343 330.5
D 12 227 97112 289.81 1383 1343 330.5

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