ASTROSAT CZTI

Data Quality Report

Orbit 06300

Creation date: 2024-06-27T15:05:21.194591
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/AS1A02_118T01_9000000826_06300cztM0_level2.evt modeM0/AS1A02_118T01_9000000826_06300cztM0_level2_quad_clean.evt
Size (bytes)580,959,36096,177,600
Size554.0 MB 91.7 MB
Events in quadrant A3,573,761647,110
Events in quadrant B3,427,750645,349
Events in quadrant C2,553,252648,754
Events in quadrant D7,635,994554,770

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145181
B0143021
C0121111
D0268401

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A59541081.813907%
B59542504.198858%
C5954260.436681%
D5954145924.504535%

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 6594 5954 3 3 0.05% 0.05%
B 6594 5954 141 141 2.14% 2.37%
C 6594 5954 0 0 0.00% 0.00%
D 6594 5955 1436 1436 21.78% 24.11%

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 15 701235 5108.93 667 651 137.1
A 15 236 173269 1258.8 667 651 137.1
A 13 251 118016 855.87 667 651 137.1
B 3 64 438154 3427.21 668 653 127.7
B 0 219 283126 2212.78 668 653 127.7
B 4 81 56685 438.93 668 653 127.7
C 1 16 12103 75.51 650 652 151.6
C 13 61 5280 30.52 650 652 151.6
C 8 222 4112 22.82 650 652 151.6
D 2 63 4616816 31815.81 599 581 145.1
D 12 220 400112 2753.63 599 581 145.1
D 11 241 129294 887.11 599 581 145.1

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