ASTROSAT CZTI

Data Quality Report

Orbit 05781

Creation date: 2024-06-27T14:59:04.668345
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/AS1A02_106T01_9000000744_05781cztM0_level2.evt modeM0/AS1A02_106T01_9000000744_05781cztM0_level2_quad_clean.evt
Size (bytes)161,991,36040,821,120
Size154.5 MB 38.9 MB
Events in quadrant A1,108,874263,110
Events in quadrant B1,201,841273,682
Events in quadrant C1,130,142259,798
Events in quadrant D1,284,620252,028

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A05956774
B06013736
C05958761
D06230736

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0608
B0604
C0606
D0608

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A258540.154739%
B261020.076628%
C259300.000000%
D262530.114286%

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 2975 2887 0 0 0.00% 0.00%
B 2975 2903 0 0 0.00% 0.00%
C 2975 2895 0 0 0.00% 0.00%
D 2975 2909 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 0 226 2821 42.16 287 281 60.3
A 12 194 2770 41.31 287 281 60.3
A 0 12 2244 32.58 287 281 60.3
B 15 204 40262 689.86 295 288 57.9
B 0 219 10157 170.32 295 288 57.9
B 12 111 5061 82.37 295 288 57.9
C 1 16 7408 105.75 284 285 67.4
C 8 128 6415 91.01 284 285 67.4
C 8 112 3280 44.47 284 285 67.4
D 8 195 153723 2131.55 288 279 72.0
D 12 233 10119 136.69 288 279 72.0
D 1 20 8896 119.7 288 279 72.0

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