ASTROSAT CZTI

Data Quality Report

Orbit 44236

Creation date: 2024-06-27T23:00:49.919245
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_074T03_9000005976_44236cztM0_level2.fits modeM0/AS1A13_074T03_9000005976_44236cztM0_level2_quad_clean.evt
Size (bytes)119,894,40027,383,040
Size114.3 MB 26.1 MB
Events in quadrant A1,422,964176,508
Events in quadrant B967,901183,934
Events in quadrant C909,686179,956
Events in quadrant D1,001,791163,976

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A056121
B039821
C038081
D041291

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0340
B0340
C0340
D0340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A17111267.364115%
B17101086.315789%
C1710704.093567%
D1710865.029240%

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 2361 1712 10 10 0.42% 0.58%
B 2360 1711 19 19 0.81% 1.11%
C 2360 1711 2 2 0.08% 0.12%
D 2360 1711 18 18 0.76% 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 411544 8804.03 211 205 46.7
A 15 223 175114 3743.64 211 205 46.7
A 7 3 12549 264.2 211 205 46.7
B 5 235 65215 1462.16 210 203 44.5
B 5 255 17239 383.15 210 203 44.5
B 0 155 15177 336.77 210 203 44.5
C 14 254 39447 733.46 217 217 53.5
C 2 14 16631 306.88 217 217 53.5
C 3 233 2443 41.62 217 217 53.5
D 13 249 129789 2301.42 215 208 56.3
D 2 249 19831 348.51 215 208 56.3
D 1 52 16874 296.0 215 208 56.3

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