ASTROSAT CZTI

Data Quality Report

Orbit 24110

Creation date: 2024-06-27T19:02:17.137849
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/AS1C05_012T04_9000003564_24110cztM0_level2.evt modeM0/AS1C05_012T04_9000003564_24110cztM0_level2_quad_clean.evt
Size (bytes)550,607,040129,214,080
Size525.1 MB 123.2 MB
Events in quadrant A3,257,141885,198
Events in quadrant B3,244,010905,975
Events in quadrant C3,188,650870,138
Events in quadrant D6,525,290779,368

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143152
B0141082
C0139952
D0239962

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6786170.250516%
B6787520.766171%
C6787721.060852%
D6787106815.735966%

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 8736 6788 0 0 0.00% 0.00%
B 8737 6789 1 1 0.01% 0.01%
C 8737 6789 0 0 0.00% 0.00%
D 8737 6789 933 933 10.68% 13.74%

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 23 115651 713.23 809 792 161.0
A 2 250 16162 95.44 809 792 161.0
A 0 226 13406 78.33 809 792 161.0
B 0 228 44044 283.68 811 791 152.5
B 12 111 18535 116.38 811 791 152.5
B 11 111 16332 101.93 811 791 152.5
C 14 238 125533 690.63 779 784 180.6
C 7 247 18933 100.48 779 784 180.6
C 3 233 5403 25.57 779 784 180.6
D 1 52 2630660 14714.59 735 712 178.7
D 8 195 973293 5441.6 735 712 178.7
D 12 233 60425 334.09 735 712 178.7

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