ASTROSAT CZTI

Data Quality Report

Orbit 10036

Creation date: 2024-06-27T15:54:02.122585
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/AS1G07_022T02_9000001434_10036cztM0_level2.evt modeM0/AS1G07_022T02_9000001434_10036cztM0_level2_quad_clean.evt
Size (bytes)466,320,96087,338,880
Size444.7 MB 83.3 MB
Events in quadrant A3,222,208532,232
Events in quadrant B3,289,188547,149
Events in quadrant C3,113,872548,963
Events in quadrant D4,010,789518,313

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A014990228
B014986179
C014750208
D017160427

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01462
C01462
D01464

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7150490.685315%
B7174540.752718%
C7157440.614783%
D71401241.736695%

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 7631 7249 3 3 0.04% 0.04%
B 7631 7253 1 1 0.01% 0.01%
C 7631 7250 0 0 0.00% 0.00%
D 7631 7232 86 86 1.13% 1.19%

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 15 239 65155 388.6 804 786 165.6
A 8 15 50091 297.66 804 786 165.6
A 0 226 7314 39.41 804 786 165.6
B 0 214 52509 329.21 817 796 157.1
B 4 239 21399 131.16 817 796 157.1
B 12 111 17559 106.71 817 796 157.1
C 13 61 5887 27.4 795 798 185.7
C 8 128 4199 18.31 795 798 185.7
C 9 221 2922 11.44 795 798 185.7
D 2 16 230743 1179.4 776 756 195.0
D 8 195 213237 1089.62 776 756 195.0
D 13 122 185362 946.68 776 756 195.0

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