ASTROSAT CZTI

Data Quality Report

Orbit 24359

Creation date: 2024-06-27T19:05:09.091330
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/AS1A07_145T01_9000003594_24359cztM0_level2.evt modeM0/AS1A07_145T01_9000003594_24359cztM0_level2_quad_clean.evt
Size (bytes)691,577,28098,066,880
Size659.5 MB 93.5 MB
Events in quadrant A3,117,635658,023
Events in quadrant B3,233,581680,477
Events in quadrant C3,353,757663,233
Events in quadrant D10,824,325539,177

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133081
B0136101
C0139361
D0363861

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6133590.962009%
B6133701.141366%
C61341252.037822%
D6134335854.744050%

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 7353 6134 0 0 0.00% 0.00%
B 7353 6134 0 0 0.00% 0.00%
C 7354 6135 0 0 0.00% 0.00%
D 7354 6135 3185 3185 43.31% 51.92%

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 10046 57.76 807 791 160.2
A 3 1 8126 45.77 807 791 160.2
A 3 137 7048 39.05 807 791 160.2
B 0 230 39998 256.12 814 795 153.1
B 12 111 17879 111.61 814 795 153.1
B 11 111 16226 100.81 814 795 153.1
C 14 238 128078 685.25 798 803 185.7
C 7 247 58845 312.5 798 803 185.7
C 2 16 52201 276.73 798 803 185.7
D 9 35 7052702 42198.86 691 673 167.1
D 7 238 902696 5397.64 691 673 167.1
D 1 52 108505 645.26 691 673 167.1

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