ASTROSAT CZTI

Data Quality Report

Orbit 08150

Creation date: 2024-06-27T15:28:43.096766
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_9000001122_08150cztM0_level2.evt modeM0/AS1G06_028T01_9000001122_08150cztM0_level2_quad_clean.evt
Size (bytes)479,514,24073,647,360
Size457.3 MB 70.2 MB
Events in quadrant A3,243,760443,641
Events in quadrant B3,489,609448,772
Events in quadrant C3,477,487452,714
Events in quadrant D3,870,191431,999

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136843
B0145722
C0146342
D0159572

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64981241.908279%
B64981452.231456%
C64981362.092952%
D64981542.369960%

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 7663 6499 0 0 0.00% 0.00%
B 7663 6499 1 1 0.01% 0.02%
C 7663 6498 0 0 0.00% 0.00%
D 7663 6499 25 25 0.33% 0.38%

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 7982 41.78 839 821 171.4
A 12 194 7511 39.03 839 821 171.4
A 13 251 6679 34.18 839 821 171.4
B 0 219 77759 482.98 841 824 159.3
B 0 213 47017 289.99 841 824 159.3
B 10 16 29898 182.52 841 824 159.3
C 1 16 283410 1500.3 819 824 188.4
C 13 61 6293 29.04 819 824 188.4
C 3 202 2065 6.59 819 824 188.4
D 1 52 661069 3102.81 814 796 212.8
D 7 71 40737 187.69 814 796 212.8
D 5 233 26607 121.29 814 796 212.8

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