ASTROSAT CZTI

Data Quality Report

Orbit 48041

Creation date: 2024-08-16T05:21:34.487472
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/AS1T05_217T01_9000006390_48041cztM0_level2.fits modeM0/AS1T05_217T01_9000006390_48041cztM0_level2_quad_clean.evt
Size (bytes)420,275,52098,801,280
Size400.8 MB 94.2 MB
Events in quadrant A6,274,686647,922
Events in quadrant B3,334,185658,912
Events in quadrant C2,559,042666,704
Events in quadrant D2,930,714605,449

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0226182
B0141012
C0120122
D0130242

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0200
C0200
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A58993385.729785%
B58993445.831497%
C5899100.169520%
D5899420.711985%

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 7114 5900 139 139 1.95% 2.36%
B 7114 5900 283 283 3.98% 4.80%
C 7114 5900 0 0 0.00% 0.00%
D 7114 5900 24 24 0.34% 0.41%

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 10 83 3750242 28138.65 646 633 133.3
A 0 243 15096 108.54 646 633 133.3
A 13 254 11392 80.74 646 633 133.3
B 5 32 745494 6113.63 632 614 121.8
B 7 221 35769 288.54 632 614 121.8
B 0 198 18961 150.58 632 614 121.8
C 12 2 15333 98.66 644 648 148.8
C 14 254 9516 59.58 644 648 148.8
C 12 250 8581 53.3 644 648 148.8
D 2 249 190311 1198.4 641 621 158.3
D 11 192 64910 406.16 641 621 158.3
D 8 176 34688 215.22 641 621 158.3

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