ASTROSAT CZTI

Data Quality Report

Orbit 47193

Creation date: 2024-06-27T23:32:41.223656
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/AS1A13_019T01_9000006302_47193cztM0_level2.fits modeM0/AS1A13_019T01_9000006302_47193cztM0_level2_quad_clean.evt
Size (bytes)132,292,80025,577,280
Size126.2 MB 24.4 MB
Events in quadrant A1,795,733162,804
Events in quadrant B1,322,232165,033
Events in quadrant C746,807170,286
Events in quadrant D903,894157,176

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A064281
B050591
C033801
D038541

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0340
B0340
C0340
D0340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A16201499.197531%
B16201619.938272%
C1620181.111111%
D1619251.544163%

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 2260 1620 48 48 2.12% 2.96%
B 2260 1620 88 88 3.89% 5.43%
C 2260 1621 2 2 0.09% 0.12%
D 2259 1620 17 17 0.75% 1.05%

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 1003638 24879.15 181 176 40.3
A 9 191 72577 1795.06 181 176 40.3
A 13 248 8812 214.12 181 176 40.3
B 15 201 394157 10398.38 180 174 37.9
B 5 172 105161 2770.92 180 174 37.9
B 0 190 98407 2592.66 180 174 37.9
C 14 254 20200 436.48 185 185 45.9
C 1 3 1962 38.75 185 185 45.9
C 14 67 1401 26.52 185 185 45.9
D 12 233 84485 1765.61 185 179 47.7
D 1 232 42459 885.46 185 179 47.7
D 12 218 26480 550.82 185 179 47.7

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