ASTROSAT CZTI

Data Quality Report

Orbit 14503

Creation date: 2024-06-27T16:56:06.446311
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/AS1G08_066T01_9000002138_14503cztM0_level2.evt modeM0/AS1G08_066T01_9000002138_14503cztM0_level2_quad_clean.evt
Size (bytes)509,005,44097,856,640
Size485.4 MB 93.3 MB
Events in quadrant A3,202,444649,271
Events in quadrant B3,610,344664,223
Events in quadrant C3,323,692654,841
Events in quadrant D4,859,369563,510

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0200

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133643
B0146532
C0134712
D0182952

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6180390.631068%
B61801071.731392%
C6180300.485437%
D618078712.734628%

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 7566 6182 1 1 0.01% 0.02%
B 7566 6182 26 26 0.34% 0.42%
C 7566 6182 1 1 0.01% 0.02%
D 7566 6181 489 489 6.46% 7.91%

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 12 189 26272 154.33 818 801 165.0
A 8 15 10507 58.81 818 801 165.0
A 4 2 9525 52.86 818 801 165.0
B 5 29 129850 848.04 821 804 152.2
B 4 142 82524 537.03 821 804 152.2
B 10 245 47736 308.42 821 804 152.2
C 3 233 118587 631.85 811 816 186.4
C 5 37 22360 115.58 811 816 186.4
C 0 207 15993 81.42 811 816 186.4
D 10 199 1754734 9829.42 745 729 178.4
D 12 110 148253 826.72 745 729 178.4
D 13 122 88107 489.66 745 729 178.4

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