ASTROSAT CZTI

Data Quality Report

Orbit 30074

Creation date: 2024-06-27T20:10:36.758813
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/AS1A10_071T08_9000004326_30074cztM0_level2.evt modeM0/AS1A10_071T08_9000004326_30074cztM0_level2_quad_clean.evt
Size (bytes)401,100,48062,130,240
Size382.5 MB 59.3 MB
Events in quadrant A2,420,910392,256
Events in quadrant B3,891,322391,501
Events in quadrant C2,530,838373,717
Events in quadrant D2,957,151365,682

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0104991
B0153541
C0107371
D0123571

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5108380.743931%
B5108711.389977%
C5107651.272763%
D51071021.997259%

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 6078 5109 2 2 0.03% 0.04%
B 6078 5109 0 0 0.00% 0.00%
C 6077 5108 0 0 0.00% 0.00%
D 6077 5108 80 80 1.32% 1.57%

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 8 192 15440 117.32 623 611 126.4
A 13 254 9221 68.12 623 611 126.4
A 3 137 6495 46.55 623 611 126.4
B 6 159 1458938 12212.55 615 599 119.4
B 12 111 15036 120.9 615 599 119.4
B 11 111 13982 112.07 615 599 119.4
C 14 238 97300 690.56 594 597 140.0
C 3 233 96414 684.23 594 597 140.0
C 2 114 11739 79.56 594 597 140.0
D 13 104 412395 2882.84 594 583 142.8
D 13 168 154240 1075.66 594 583 142.8
D 8 195 86433 600.98 594 583 142.8

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