ASTROSAT CZTI

Data Quality Report

Orbit 27906

Creation date: 2024-06-27T19:45:49.911269
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/AS1A10_048T06_9000004030_27906cztM0_level2.evt modeM0/AS1A10_048T06_9000004030_27906cztM0_level2_quad_clean.evt
Size (bytes)536,515,200108,106,560
Size511.7 MB 103.1 MB
Events in quadrant A3,488,367735,408
Events in quadrant B3,732,114740,409
Events in quadrant C3,527,073692,385
Events in quadrant D5,074,518666,751

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145670
B0154240
C0146060
D0198020

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0200
C0200
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6294981.557038%
B62941302.065459%
C62931562.478945%
D62932634.179247%

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 7540 6295 0 0 0.00% 0.00%
B 7540 6295 8 8 0.11% 0.13%
C 7539 6294 0 0 0.00% 0.00%
D 7539 6294 184 184 2.44% 2.92%

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 13 254 10294 52.77 903 889 178.2
A 8 192 7934 39.53 903 889 178.2
A 3 137 7886 39.26 903 889 178.2
B 0 230 86056 513.16 889 870 166.0
B 0 229 70947 422.14 889 870 166.0
B 10 245 40933 241.34 889 870 166.0
C 14 238 137228 707.93 839 845 192.7
C 3 233 83458 428.82 839 845 192.7
C 2 16 19501 96.84 839 845 192.7
D 8 195 816941 4083.63 850 829 199.8
D 1 52 776799 3882.77 850 829 199.8
D 2 250 147322 733.02 850 829 199.8

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