ASTROSAT CZTI

Data Quality Report

Orbit 16717

Creation date: 2024-06-27T17:26:38.848971
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/AS1T03_024T01_9000002472_16717cztM0_level2.evt modeM0/AS1T03_024T01_9000002472_16717cztM0_level2_quad_clean.evt
Size (bytes)507,712,32061,752,960
Size484.2 MB 58.9 MB
Events in quadrant A2,450,464410,165
Events in quadrant B2,737,578411,346
Events in quadrant C3,047,921396,831
Events in quadrant D6,831,928331,657

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100561
B0109581
C0121931
D0234771

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0900
B0900
C0900
D0900

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4545220.484048%
B4545370.814081%
C4545450.990099%
D4545189941.782178%

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 4546 4546 3 3 0.07% 0.07%
B 4546 4546 21 21 0.46% 0.46%
C 4546 4546 2 2 0.04% 0.04%
D 4546 4546 987 987 21.71% 21.71%

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 24302 188.53 624 614 125.6
A 15 174 23932 185.58 624 614 125.6
A 0 226 6918 50.17 624 614 125.6
B 15 35 137554 1184.08 622 612 115.7
B 5 236 57041 487.92 622 612 115.7
B 10 16 51830 442.86 622 612 115.7
C 3 233 507735 3646.6 603 612 139.1
C 14 238 94497 675.11 603 612 139.1
C 0 207 50729 360.38 603 612 139.1
D 1 52 4446481 38289.97 474 463 116.1
D 2 16 335148 2882.37 474 463 116.1
D 11 176 147246 1264.12 474 463 116.1

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