ASTROSAT CZTI

Data Quality Report

Orbit 30026

Creation date: 2024-06-27T20:10:02.656610
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/AS1A10_071T03_9000004314_30026cztM0_level2.evt modeM0/AS1A10_071T03_9000004314_30026cztM0_level2_quad_clean.evt
Size (bytes)204,854,40049,443,840
Size195.4 MB 47.2 MB
Events in quadrant A1,270,396335,984
Events in quadrant B2,021,684332,708
Events in quadrant C1,308,518317,205
Events in quadrant D1,416,230316,131

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A055030
B082410
C055620
D058070

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0560
B0560
C0560
D0560

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A272000.000000%
B2721150.551268%
C2721110.404263%
D2721170.624770%

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 2720 2720 0 0 0.00% 0.00%
B 2721 2721 0 0 0.00% 0.00%
C 2721 2721 0 0 0.00% 0.00%
D 2721 2721 14 14 0.51% 0.51%

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 13 254 5312 74.2 329 322 67.3
A 3 137 3280 43.98 329 322 67.3
A 0 226 2806 36.94 329 322 67.3
B 6 159 679823 10697.7 321 314 63.5
B 6 36 72501 1136.46 321 314 63.5
B 12 111 7500 113.13 321 314 63.5
C 14 238 50765 671.22 315 317 75.2
C 3 233 17027 222.33 315 317 75.2
C 2 114 6131 77.36 315 317 75.2
D 8 195 91700 1180.83 319 312 77.4
D 7 80 84894 1092.89 319 312 77.4
D 13 249 18929 240.55 319 312 77.4

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