ASTROSAT CZTI

Data Quality Report

Orbit 17103

Creation date: 2024-06-27T17:32:09.104509
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/AS1A05_004T03_9000002538_17103cztM0_level2.evt modeM0/AS1A05_004T03_9000002538_17103cztM0_level2_quad_clean.evt
Size (bytes)262,160,64037,889,280
Size250.0 MB 36.1 MB
Events in quadrant A1,723,582228,011
Events in quadrant B1,808,414230,249
Events in quadrant C1,779,212221,057
Events in quadrant D2,380,223210,841

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0740
B0740
C0740
D0740

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A074841
B076531
C074902
D094831

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3629391.074676%
B3629451.240011%
C3628601.653804%
D36281594.382580%

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 4534 3630 0 0 0.00% 0.00%
B 4534 3630 3 3 0.07% 0.08%
C 4533 3629 0 0 0.00% 0.00%
D 4533 3629 103 103 2.27% 2.84%

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 0 226 3993 38.35 447 437 92.7
A 12 194 3428 32.26 447 437 92.7
A 4 2 3370 31.63 447 437 92.7
B 0 197 21767 244.39 446 434 87.3
B 12 111 10082 110.53 446 434 87.3
B 0 244 9533 104.24 446 434 87.3
C 14 238 64631 625.83 430 432 102.6
C 3 233 35503 341.88 430 432 102.6
C 13 61 3114 26.14 430 432 102.6
D 5 222 410219 3839.9 432 420 106.7
D 15 0 209219 1956.49 432 420 106.7
D 10 70 87501 815.97 432 420 106.7

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