ASTROSAT CZTI

Data Quality Report

Orbit 47592

Creation date: 2024-07-16T22:03:53.431741
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/AS1A13_037T05_9000006338_47592cztM0_level2.fits modeM0/AS1A13_037T05_9000006338_47592cztM0_level2_quad_clean.evt
Size (bytes)495,195,840109,964,160
Size472.3 MB 104.9 MB
Events in quadrant A7,136,554718,759
Events in quadrant B3,718,444762,634
Events in quadrant C2,901,178740,839
Events in quadrant D4,083,457666,191

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0257841
B0153321
C0130941
D0163171

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63275548.756125%
B63272614.125178%
C6328741.169406%
D63282403.792668%

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 7487 6328 223 223 2.98% 3.52%
B 7487 6327 98 98 1.31% 1.55%
C 7488 6329 4 4 0.05% 0.06%
D 7488 6329 158 158 2.11% 2.50%

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 3616906 23539.83 735 723 153.6
A 13 248 516941 3360.36 735 723 153.6
A 9 191 122649 793.69 735 723 153.6
B 0 200 398198 2790.1 737 717 142.5
B 5 32 297581 2083.83 737 717 142.5
B 5 171 22565 153.36 737 717 142.5
C 1 3 39760 230.1 726 733 169.6
C 3 233 24893 142.44 726 733 169.6
C 13 61 4940 24.8 726 733 169.6
D 2 249 877621 4810.03 727 706 182.3
D 7 55 102820 560.11 727 706 182.3
D 7 96 93216 507.43 727 706 182.3

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