ASTROSAT CZTI

Data Quality Report

Orbit 43633

Creation date: 2024-06-27T22:53:54.398583
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/AS1A12_068T05_9000005894_43633cztM0_level2.fits modeM0/AS1A12_068T05_9000005894_43633cztM0_level2_quad_clean.evt
Size (bytes)361,226,88034,344,000
Size344.5 MB 32.8 MB
Events in quadrant A1,669,198307,218
Events in quadrant B1,842,517313,606
Events in quadrant C5,834,03847,934
Events in quadrant D3,835,749196,691

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0500
B0500
C0500
D0500

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A069071
B071901
C0189746
D0130921

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2428793.253707%
B24281164.777595%
C2427213688.009889%
D242788836.588381%

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 3638 2429 3 3 0.08% 0.12%
B 3638 2428 26 26 0.71% 1.07%
C 3637 2427 2081 2081 57.22% 85.74%
D 3637 2427 773 773 21.25% 31.85%

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 366638 5712.9 307 301 64.1
A 8 4 34967 540.6 307 301 64.1
A 15 223 24832 382.55 307 301 64.1
B 4 206 418577 7080.27 302 293 59.1
B 5 235 110352 1862.96 302 293 59.1
B 12 32 59014 993.97 302 293 59.1
C 15 142 4016450 111855.43 150 151 35.9
C 15 174 355755 9903.7 150 151 35.9
C 15 157 351261 9778.54 150 151 35.9
D 4 216 752794 10951.11 266 258 68.7
D 12 6 410768 5973.85 266 258 68.7
D 8 192 227278 3303.66 266 258 68.7

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