ASTROSAT CZTI

Data Quality Report

Orbit 20230902_T05_143T01_9000005830_level2

Creation date: 2023-09-09T12:38:49.939354
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_143T01_9000005830cztM0_level2.fits modeM0/AS1T05_143T01_9000005830cztM0_level2_quad_clean.evt
Size (bytes)2,253,712,3202,754,976,320
Size2.1 GB 2.6 GB
Events in quadrant A13,531,78817,847,044
Events in quadrant B12,358,14416,326,638
Events in quadrant C13,233,45216,600,493
Events in quadrant D11,265,97814,825,802

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A06186230
B06960660
C06145870
D07610320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010100
B010100
C010100
D010100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A053240
B053240
C053240
D053240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A26050355342.124352%
B260503248089.523115%
C26050361262.351604%
D260503171806.594934%

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 361388 260134 0 0 0.00% 0.00%
B 361388 259980 0 0 0.00% 0.00%
C 361388 260140 0 0 0.00% 0.00%
D 361388 259988 0 0 0.00% 0.00%

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 0 29 11418 9.09 3535 3311 891.8
A 9 19 11400 9.07 3535 3311 891.8
A 7 110 11360 9.03 3535 3311 891.8
B 2 9 10720 12.3 3268 3124 617.8
B 3 80 9004 9.52 3268 3124 617.8
B 3 17 8643 8.93 3268 3124 617.8
C 1 81 11106 8.8 3501 3280 889.0
C 1 80 10625 8.26 3501 3280 889.0
C 3 202 10606 8.24 3501 3280 889.0
D 10 189 8320 6.25 3226 2937 861.3
D 7 3 8278 6.2 3226 2937 861.3
D 4 160 8276 6.2 3226 2937 861.3

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