ASTROSAT CZTI

Data Quality Report

Orbit 18323

Creation date: 2024-06-27T17:48:20.602744
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/AS1A06_006T01_9000002720_18323cztM0_level2.evt modeM0/AS1A06_006T01_9000002720_18323cztM0_level2_quad_clean.evt
Size (bytes)699,713,28067,993,920
Size667.3 MB 64.8 MB
Events in quadrant A3,249,693429,848
Events in quadrant B3,623,837434,338
Events in quadrant C3,333,117424,869
Events in quadrant D10,552,364323,590

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0190
C0190
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134141
B0146151
C0136111
D0357611

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6383380.595331%
B6383961.503995%
C6383821.284662%
D6383271642.550525%

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 7633 6384 0 0 0.00% 0.00%
B 7633 6384 33 33 0.43% 0.52%
C 7633 6384 0 0 0.00% 0.00%
D 7633 6384 2590 2590 33.93% 40.57%

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 7397 39.28 841 828 167.2
A 8 32 7132 37.7 841 828 167.2
A 12 194 6164 31.91 841 828 167.2
B 7 220 243623 1523.4 848 831 159.4
B 12 111 17582 105.1 848 831 159.4
B 0 189 16017 95.28 848 831 159.4
C 14 238 128443 681.0 816 826 187.4
C 3 233 17868 90.94 816 826 187.4
C 0 207 6573 30.67 816 826 187.4
D 7 238 7152768 43197.41 683 663 165.6
D 1 52 423015 2550.93 683 663 165.6
D 2 69 308651 1860.19 683 663 165.6

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