ASTROSAT CZTI

Data Quality Report

Orbit 05341

Creation date: 2024-06-27T14:54:06.216752
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/AS1G05_152T01_9000000676_05341cztM0_level2.evt modeM0/AS1G05_152T01_9000000676_05341cztM0_level2_quad_clean.evt
Size (bytes)519,949,44095,060,160
Size495.9 MB 90.7 MB
Events in quadrant A2,900,278626,649
Events in quadrant B3,189,780643,341
Events in quadrant C3,753,323629,681
Events in quadrant D5,482,101545,344

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129803
B0137012
C0152194
D0205552

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6211510.821124%
B6211761.223635%
C6210200.322061%
D621183113.379488%

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 7566 6212 30 30 0.40% 0.48%
B 7566 6212 35 35 0.46% 0.56%
C 7566 6212 0 0 0.00% 0.00%
D 7565 6211 829 829 10.96% 13.35%

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 70635 483.86 717 703 144.5
A 0 50 41951 285.39 717 703 144.5
A 13 251 29767 201.09 717 703 144.5
B 10 16 166570 1216.93 737 720 136.3
B 4 48 51247 370.74 737 720 136.3
B 15 204 49920 361.01 737 720 136.3
C 1 16 953119 5811.92 715 717 163.9
C 13 61 5885 31.54 715 717 163.9
C 14 67 3755 18.54 715 717 163.9
D 2 63 2268740 14177.04 655 636 160.0
D 9 82 497589 3106.26 655 636 160.0
D 8 195 42018 258.66 655 636 160.0

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