ASTROSAT CZTI

Data Quality Report

Orbit 28719

Creation date: 2024-06-27T19:55:21.738041
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_123T06_9000004122_28719cztM0_level2.evt modeM0/AS1A10_123T06_9000004122_28719cztM0_level2_quad_clean.evt
Size (bytes)191,448,00039,407,040
Size182.6 MB 37.6 MB
Events in quadrant A1,232,840264,409
Events in quadrant B1,227,490268,152
Events in quadrant C1,272,193256,351
Events in quadrant D1,915,492246,575

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A049501
B049041
C050761
D072511

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0440
B0440
C0440
D0440

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A21831175.359597%
B21831285.863491%
C21831285.863491%
D21831798.199725%

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 3458 2183 0 0 0.00% 0.00%
B 3458 2183 0 0 0.00% 0.00%
C 3458 2183 0 0 0.00% 0.00%
D 3458 2183 96 96 2.78% 4.40%

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 3595 50.9 318 313 64.5
A 15 174 3235 45.32 318 313 64.5
A 3 137 2972 41.24 318 313 64.5
B 12 111 7149 114.04 311 303 60.0
B 11 111 6472 102.76 311 303 60.0
B 14 111 6185 97.98 311 303 60.0
C 3 233 50292 717.95 300 300 69.6
C 14 238 49794 710.8 300 300 69.6
C 13 61 1976 24.07 300 300 69.6
D 1 52 614015 8509.73 301 294 72.1
D 8 195 128523 1778.0 301 294 72.1
D 12 233 29347 402.84 301 294 72.1

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