ASTROSAT CZTI

Data Quality Report

Orbit 06692

Creation date: 2024-06-27T15:10:28.614675
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/AS1T01_145T01_9000000916_06692cztM0_level2.evt modeM0/AS1T01_145T01_9000000916_06692cztM0_level2_quad_clean.evt
Size (bytes)577,123,200123,742,080
Size550.4 MB 118.0 MB
Events in quadrant A3,343,763831,225
Events in quadrant B3,464,935850,992
Events in quadrant C3,205,520836,572
Events in quadrant D6,971,141722,902

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0151533
B0153122
C0149332
D0257432

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72652573.537509%
B72652713.730213%
C72652263.110805%
D7265115615.911906%

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 7390 7267 5 5 0.07% 0.07%
B 7390 7267 14 14 0.19% 0.19%
C 7390 7267 0 0 0.00% 0.00%
D 7390 7267 791 791 10.70% 10.88%

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 65267 381.44 824 804 169.0
A 14 111 60836 355.22 824 804 169.0
A 4 2 14814 82.9 824 804 169.0
B 4 48 60628 372.4 834 811 160.6
B 0 198 57956 355.77 834 811 160.6
B 15 204 35848 218.13 834 811 160.6
C 8 128 14195 71.03 813 815 188.4
C 8 112 8092 38.63 813 815 188.4
C 13 61 6423 29.77 813 815 188.4
D 2 33 2610282 14141.82 753 727 184.5
D 8 195 892415 4832.28 753 727 184.5
D 2 152 314715 1701.58 753 727 184.5

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