ASTROSAT CZTI

Data Quality Report

Orbit 43965

Creation date: 2024-06-27T22:57:45.080637
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_065T06_9000005924_43965cztM0_level2.fits modeM0/AS1A13_065T06_9000005924_43965cztM0_level2_quad_clean.evt
Size (bytes)540,607,680107,956,800
Size515.6 MB 103.0 MB
Events in quadrant A9,089,514644,388
Events in quadrant B3,213,989776,428
Events in quadrant C3,063,753735,985
Events in quadrant D4,142,666660,681

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0315472
B0139942
C0136562
D0167893

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6467130520.179372%
B6467851.314365%
C6467490.757693%
D64661842.845654%

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 7627 6468 1117 1117 14.65% 17.27%
B 7626 6466 21 21 0.28% 0.32%
C 7626 6467 29 29 0.38% 0.45%
D 7625 6466 120 120 1.57% 1.86%

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 15 223 4199379 28891.21 705 692 145.3
A 10 83 1105381 7601.38 705 692 145.3
A 14 238 1016730 6991.37 705 692 145.3
B 0 183 77959 522.23 754 730 147.9
B 0 200 62687 418.96 754 730 147.9
B 4 158 23046 150.9 754 730 147.9
C 14 254 85239 484.06 739 744 174.6
C 12 16 70639 400.42 739 744 174.6
C 3 233 14891 81.05 739 744 174.6
D 1 52 483078 2636.38 723 701 183.0
D 5 235 252357 1375.4 723 701 183.0
D 12 17 96889 525.71 723 701 183.0

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