ASTROSAT CZTI

Data Quality Report

Orbit 06674

Creation date: 2024-06-27T15:10:09.523841
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_102T01_9000000912_06674cztM0_level2.evt modeM0/AS1G06_102T01_9000000912_06674cztM0_level2_quad_clean.evt
Size (bytes)366,897,60059,431,680
Size349.9 MB 56.7 MB
Events in quadrant A2,223,596369,888
Events in quadrant B2,289,926379,323
Events in quadrant C2,198,719373,942
Events in quadrant D4,071,640338,734

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0980
B0980
C0980
D0980

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100652
B0102931
C0100581
D0154851

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4807330.686499%
B4807541.123362%
C4807310.644893%
D480774315.456626%

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 5912 4808 0 0 0.00% 0.00%
B 5912 4808 3 3 0.05% 0.06%
C 5912 4808 3 3 0.05% 0.06%
D 5912 4808 453 453 7.66% 9.42%

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 14 111 34367 293.37 562 548 115.3
A 8 15 11528 95.25 562 548 115.3
A 3 1 9431 77.06 562 548 115.3
B 0 214 34400 314.04 565 551 107.8
B 4 81 28606 260.28 565 551 107.8
B 4 48 15938 142.76 565 551 107.8
C 9 247 72055 557.52 545 547 128.3
C 13 61 4427 30.25 545 547 128.3
C 3 202 1388 6.56 545 547 128.3
D 2 33 1641006 13233.53 500 485 124.0
D 8 195 278233 2240.5 500 485 124.0
D 2 152 143889 1156.79 500 485 124.0

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