ASTROSAT CZTI

Data Quality Report

Orbit 47179

Creation date: 2024-06-27T23:32:31.693657
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/AS1C09_003T01_9000006298_47179cztM0_level2.fits modeM0/AS1C09_003T01_9000006298_47179cztM0_level2_quad_clean.evt
Size (bytes)1,384,773,120292,832,640
Size1.3 GB 279.3 MB
Events in quadrant A18,893,4111,955,806
Events in quadrant B10,630,5471,946,771
Events in quadrant C9,124,9331,887,428
Events in quadrant D11,142,8041,766,414

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0689363
B0447923
C0413943
D0467294

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03840
B03840
C03840
D03840

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A190036623.483660%
B190038074.246698%
C190044922.588929%
D190036153.236331%

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 20373 19005 30 30 0.15% 0.16%
B 20373 19005 396 396 1.94% 2.08%
C 20374 19006 256 256 1.26% 1.35%
D 20373 19006 406 406 1.99% 2.14%

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 10 83 10624378 24608.34 2086 2040 431.7
A 9 191 82903 187.33 2086 2040 431.7
A 13 254 38027 83.37 2086 2040 431.7
B 0 190 1340655 3332.65 2066 2003 401.7
B 4 171 315195 779.71 2066 2003 401.7
B 4 21 229472 566.3 2066 2003 401.7
C 15 208 827448 1724.92 2036 2040 478.5
C 14 254 276141 572.81 2036 2040 478.5
C 3 233 28424 55.14 2036 2040 478.5
D 1 47 1151055 2237.19 2048 1979 513.6
D 7 55 330021 638.68 2048 1979 513.6
D 8 176 285481 551.96 2048 1979 513.6

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