ASTROSAT CZTI

Data Quality Report

Orbit 06493

Creation date: 2024-06-27T15:08:07.182751
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_164T01_9000000866_06493cztM0_level2.evt modeM0/AS1G06_164T01_9000000866_06493cztM0_level2_quad_clean.evt
Size (bytes)262,984,32057,378,240
Size250.8 MB 54.7 MB
Events in quadrant A1,809,411370,493
Events in quadrant B1,918,006363,856
Events in quadrant C1,715,364362,614
Events in quadrant D2,243,352353,353

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A084441
B086631
C082171
D093841

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0820
B0820
C0820
D0820

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4075250.613497%
B4075441.079755%
C4075130.319018%
D4075521.276074%

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 4640 4076 6 6 0.13% 0.15%
B 4640 4076 22 22 0.47% 0.54%
C 4640 4076 0 0 0.00% 0.00%
D 4640 4076 28 28 0.60% 0.69%

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 15 174 38041 404.82 448 437 92.9
A 8 15 30438 322.97 448 437 92.9
A 15 236 6891 69.48 448 437 92.9
B 0 219 79213 906.6 449 438 86.9
B 0 214 37253 423.69 449 438 86.9
B 4 81 15538 173.78 449 438 86.9
C 1 16 3647 31.44 437 439 102.0
C 13 61 3421 29.23 437 439 102.0
C 9 54 2120 16.48 437 439 102.0
D 8 195 220466 2042.48 436 422 107.7
D 2 152 132359 1224.66 436 422 107.7
D 2 136 126650 1171.66 436 422 107.7

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