ASTROSAT CZTI

Data Quality Report

Orbit 07137

Creation date: 2024-06-27T15:16:00.973513
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/AS1G06_051T01_9000000972_07137cztM0_level2.evt modeM0/AS1G06_051T01_9000000972_07137cztM0_level2_quad_clean.evt
Size (bytes)433,837,44086,034,240
Size413.7 MB 82.0 MB
Events in quadrant A3,229,719541,325
Events in quadrant B3,173,322553,943
Events in quadrant C3,096,239541,035
Events in quadrant D3,201,427519,611

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137223
B0134402
C0132992
D0137402

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64451011.567106%
B6445751.163693%
C6445470.729247%
D6445711.101629%

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 7515 6445 1 1 0.01% 0.02%
B 7515 6445 1 1 0.01% 0.02%
C 7515 6446 1 1 0.01% 0.02%
D 7515 6445 13 13 0.17% 0.20%

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 14 111 166313 1032.72 786 770 160.3
A 8 15 21639 130.19 786 770 160.3
A 13 248 16379 97.38 786 770 160.3
B 0 219 86441 571.29 785 765 150.0
B 4 81 27859 180.66 785 765 150.0
B 12 111 15462 98.0 785 765 150.0
C 9 68 73937 413.38 762 766 177.0
C 7 247 30370 167.25 762 766 177.0
C 4 254 10367 54.24 762 766 177.0
D 2 216 79931 418.13 765 740 189.4
D 12 233 78278 409.4 765 740 189.4
D 8 195 47778 248.36 765 740 189.4

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