ASTROSAT CZTI

Data Quality Report

Orbit 13415

Creation date: 2024-06-27T16:40:26.423086
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/AS1A04_103T01_9000001988_13415cztM0_level2.evt modeM0/AS1A04_103T01_9000001988_13415cztM0_level2_quad_clean.evt
Size (bytes)486,587,52065,557,440
Size464.0 MB 62.5 MB
Events in quadrant A3,257,879389,704
Events in quadrant B3,826,829389,993
Events in quadrant C3,257,903390,379
Events in quadrant D3,957,357366,205

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139133
B0155272
C0138062
D0160082

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6429761.182143%
B64292403.733084%
C6429520.808835%
D64291562.426505%

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 7595 6430 1 1 0.01% 0.02%
B 7595 6430 125 125 1.65% 1.94%
C 7595 6430 0 0 0.00% 0.00%
D 7595 6430 118 118 1.55% 1.84%

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 42143 247.08 831 813 167.3
A 1 162 10204 56.14 831 813 167.3
A 0 226 7507 40.02 831 813 167.3
B 3 64 482703 3151.67 817 797 152.9
B 0 230 50423 324.55 817 797 152.9
B 15 201 34943 223.32 817 797 152.9
C 3 233 103188 554.73 806 811 184.6
C 14 220 10635 53.23 806 811 184.6
C 13 61 5763 26.83 806 811 184.6
D 1 52 508342 2702.2 796 774 187.8
D 8 195 214083 1135.62 796 774 187.8
D 2 14 88735 468.29 796 774 187.8

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