ASTROSAT CZTI

Data Quality Report

Orbit 47997

Creation date: 2024-08-13T05:07:55.779626
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_062T02_9000006384_47997cztM0_level2.fits modeM0/AS1A13_062T02_9000006384_47997cztM0_level2_quad_clean.evt
Size (bytes)317,905,92075,234,240
Size303.2 MB 71.7 MB
Events in quadrant A4,597,289441,691
Events in quadrant B2,248,612534,689
Events in quadrant C2,320,476513,072
Events in quadrant D2,244,767464,890

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A012014
B011915
C011812
D012012

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0209744380
B0113121497
C0116431579
D0114291442

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A42863217.489501%
B4647781.678502%
C4647601.291156%
D4657551.181018%

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 7577 4818 65 65 0.86% 1.35%
B 7576 5152 8 8 0.11% 0.16%
C 7576 5149 13 13 0.17% 0.25%
D 7576 5155 22 22 0.29% 0.43%

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 2669671 25869.79 493 483 103.2
A 7 3 12753 118.92 493 483 103.2
A 14 248 6478 58.1 493 483 103.2
B 0 197 16058 142.99 547 529 108.6
B 0 198 14609 129.65 547 529 108.6
B 12 111 13579 120.17 547 529 108.6
C 14 254 141762 1097.93 541 544 128.6
C 12 250 23562 178.96 541 544 128.6
C 12 2 19975 151.07 541 544 128.6
D 2 249 70500 525.03 539 525 133.3
D 11 224 48588 360.62 539 525 133.3
D 8 176 23940 175.69 539 525 133.3

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