ASTROSAT CZTI

Data Quality Report

Orbit 17154

Creation date: 2024-06-27T17:32:53.982978
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/AS1T03_059T01_9000002546_17154cztM0_level2.evt modeM0/AS1T03_059T01_9000002546_17154cztM0_level2_quad_clean.evt
Size (bytes)500,690,88088,945,920
Size477.5 MB 84.8 MB
Events in quadrant A3,487,798571,725
Events in quadrant B3,162,951586,187
Events in quadrant C4,954,983542,813
Events in quadrant D3,118,494541,096

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0144572
B0133982
C0196022
D0136112

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6475741.142857%
B6475420.648649%
C64741682.594995%
D6474400.617856%

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 7585 6476 42 42 0.55% 0.65%
B 7585 6476 0 0 0.00% 0.00%
C 7584 6475 4 4 0.05% 0.06%
D 7584 6475 17 17 0.22% 0.26%

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 12 96 352526 2197.29 797 780 160.1
A 12 189 71680 442.9 797 780 160.1
A 0 226 6862 37.99 797 780 160.1
B 12 111 18418 114.99 808 786 153.3
B 11 111 15586 96.52 808 786 153.3
B 14 111 13261 81.36 808 786 153.3
C 3 233 1809707 9979.95 775 780 181.3
C 14 238 119612 655.6 775 780 181.3
C 13 61 5402 25.5 775 780 181.3
D 1 52 59942 311.01 783 762 190.3
D 10 70 58649 304.21 783 762 190.3
D 2 234 22620 114.87 783 762 190.3

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