ASTROSAT CZTI

Data Quality Report

Orbit 37552

Creation date: 2024-06-27T21:41:26.473858
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/AS1T05_051T01_9000005334_37552cztM0_level2.evt modeM0/AS1T05_051T01_9000005334_37552cztM0_level2_quad_clean.evt
Size (bytes)384,341,76050,771,520
Size366.5 MB 48.4 MB
Events in quadrant A2,691,816292,533
Events in quadrant B3,071,996296,526
Events in quadrant C2,884,931297,487
Events in quadrant D2,633,202281,959

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0390
B0390
C0390
D0400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110943
B0125082
C0116292
D0115122

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A526570.132953%
B5265951.804368%
C5265551.044634%
D5265360.683761%

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 7268 5266 1 1 0.01% 0.02%
B 7268 5266 63 63 0.87% 1.20%
C 7268 5266 52 52 0.72% 0.99%
D 7268 5266 30 30 0.41% 0.57%

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 10 83 289303 2362.16 603 591 122.2
A 7 3 18561 147.03 603 591 122.2
A 13 6 17322 136.89 603 591 122.2
B 3 112 227669 1972.13 603 588 115.1
B 0 189 106094 916.29 603 588 115.1
B 5 172 79522 685.52 603 588 115.1
C 15 214 226659 1629.91 593 598 138.7
C 14 254 178259 1280.94 593 598 138.7
C 0 10 74285 531.29 593 598 138.7
D 13 249 107800 747.87 587 571 143.4
D 2 249 93113 645.43 587 571 143.4
D 2 153 43032 296.14 587 571 143.4

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