ASTROSAT CZTI

Data Quality Report

Orbit 30186

Creation date: 2024-06-27T20:11:59.325501
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/AS1A10_102T01_9000004340_30186cztM0_level2.evt modeM0/AS1A10_102T01_9000004340_30186cztM0_level2_quad_clean.evt
Size (bytes)454,916,16032,503,680
Size433.8 MB 31.0 MB
Events in quadrant A1,788,895196,725
Events in quadrant B2,713,773197,656
Events in quadrant C6,557,038154,543
Events in quadrant D2,477,283184,311

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0700
B0700
C0700
D0700

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A075191
B0107711
C0219221
D095591

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A35301895.354108%
B35313028.552818%
C3531225363.806287%
D35313259.204191%

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 3565 3531 0 0 0.00% 0.00%
B 3566 3532 0 0 0.00% 0.00%
C 3566 3531 1268 1268 35.56% 35.91%
D 3566 3532 168 168 4.71% 4.76%

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 5624 53.49 463 451 96.7
A 3 137 5032 47.37 463 451 96.7
A 0 226 3928 35.96 463 451 96.7
B 6 159 946882 10419.01 448 434 90.8
B 12 111 11569 122.57 448 434 90.8
B 11 111 10798 114.09 448 434 90.8
C 3 233 5054912 57452.64 367 367 88.0
C 14 238 58257 658.01 367 367 88.0
C 2 114 7002 75.42 367 367 88.0
D 1 52 534291 5110.13 432 420 104.5
D 15 0 124275 1185.52 432 420 104.5
D 8 195 85351 812.95 432 420 104.5

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