ASTROSAT CZTI

Data Quality Report

Orbit 06326

Creation date: 2024-06-27T15:05:42.504031
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/AS1G06_028T01_9000000834_06326cztM0_level2.evt modeM0/AS1G06_028T01_9000000834_06326cztM0_level2_quad_clean.evt
Size (bytes)528,995,52086,978,880
Size504.5 MB 82.9 MB
Events in quadrant A3,011,050579,223
Events in quadrant B4,513,546561,628
Events in quadrant C2,751,665566,302
Events in quadrant D5,345,196515,357

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0127252
B0172851
C0121541
D0199401

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A58841472.498300%
B58845549.415364%
C5884631.070700%
D58845198.820530%

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 7034 5885 11 11 0.16% 0.19%
B 7034 5885 354 354 5.03% 6.02%
C 7034 5885 2 2 0.03% 0.03%
D 7034 5885 436 436 6.20% 7.41%

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 13 251 143483 959.72 722 708 148.8
A 14 111 50948 337.71 722 708 148.8
A 8 15 30813 202.36 722 708 148.8
B 3 64 1603234 12079.92 699 685 132.7
B 4 81 173366 1301.66 699 685 132.7
B 15 204 28612 210.51 699 685 132.7
C 4 254 31681 191.86 695 701 161.5
C 13 61 5334 28.69 695 701 161.5
C 8 128 2635 11.98 695 701 161.5
D 12 220 1254536 7450.5 683 662 168.3
D 12 221 960616 5704.03 683 662 168.3
D 2 63 165796 981.22 683 662 168.3

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