ASTROSAT CZTI

Data Quality Report

Orbit 07094

Creation date: 2024-06-27T15:15:30.571855
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_090T01_9000000970_07094cztM0_level2.evt modeM0/AS1A02_090T01_9000000970_07094cztM0_level2_quad_clean.evt
Size (bytes)460,200,96083,701,440
Size438.9 MB 79.8 MB
Events in quadrant A3,243,881525,262
Events in quadrant B3,366,320529,823
Events in quadrant C3,198,711520,198
Events in quadrant D3,674,981494,574

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138203
B0139702
C0138082
D0149522

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66721352.023381%
B66721452.173261%
C6672741.109113%
D66721281.918465%

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 7657 6672 0 0 0.00% 0.00%
B 7657 6672 2 2 0.03% 0.03%
C 7657 6672 1 1 0.01% 0.01%
D 7657 6672 45 45 0.59% 0.67%

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 7819 40.62 841 826 172.2
A 12 194 7482 38.66 841 826 172.2
A 13 14 5502 27.16 841 826 172.2
B 0 219 49420 297.37 847 828 163.4
B 0 214 27823 165.2 847 828 163.4
B 12 111 16523 96.05 847 828 163.4
C 4 254 9520 45.88 811 817 189.7
C 9 68 7663 36.09 811 817 189.7
C 13 61 6320 29.01 811 817 189.7
D 7 55 246781 1230.34 809 786 199.9
D 1 20 245067 1221.77 809 786 199.9
D 8 195 48832 240.3 809 786 199.9

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