ASTROSAT CZTI

Data Quality Report

Orbit 24159

Creation date: 2024-06-27T19:02:54.588357
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_047T06_9000003576_24159cztM0_level2.evt modeM0/AS1A07_047T06_9000003576_24159cztM0_level2_quad_clean.evt
Size (bytes)342,391,68093,240,000
Size326.5 MB 88.9 MB
Events in quadrant A2,097,939650,636
Events in quadrant B2,143,509654,002
Events in quadrant C2,787,637619,552
Events in quadrant D3,064,764614,395

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0800
B0800
C0800
D0800

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A087010
B089020
C0109830
D0118590

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A404760.148258%
B4047190.469484%
C40471844.546578%
D40481483.656126%

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 4047 4047 0 0 0.00% 0.00%
B 4047 4047 9 9 0.22% 0.22%
C 4047 4047 102 102 2.52% 2.52%
D 4048 4048 165 165 4.08% 4.08%

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 13 254 6697 57.41 544 536 107.3
A 0 226 4799 39.72 544 536 107.3
A 3 137 3954 31.85 544 536 107.3
B 0 245 53291 542.05 531 521 97.4
B 12 111 10547 102.99 531 521 97.4
B 11 111 9232 89.48 531 521 97.4
C 10 9 423059 3649.55 513 518 115.8
C 2 16 236238 2035.95 513 518 115.8
C 14 238 84195 722.73 513 518 115.8
D 7 238 913998 7138.61 531 516 128.0
D 12 233 66021 511.9 531 516 128.0
D 8 195 46184 356.88 531 516 128.0

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