ASTROSAT CZTI

Data Quality Report

Orbit 12029

Creation date: 2024-06-27T16:21:25.121550
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/AS1A04_044T01_9000001782_12029cztM0_level2.evt modeM0/AS1A04_044T01_9000001782_12029cztM0_level2_quad_clean.evt
Size (bytes)501,825,60097,781,760
Size478.6 MB 93.3 MB
Events in quadrant A3,411,596642,467
Events in quadrant B3,577,398649,184
Events in quadrant C3,006,505625,762
Events in quadrant D4,759,916589,114

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143873
B0147522
C0134302
D0186172

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6520580.889571%
B65201131.733129%
C6520160.245399%
D65203715.690184%

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 7731 6521 9 9 0.12% 0.14%
B 7731 6521 16 16 0.21% 0.25%
C 7731 6521 0 0 0.00% 0.00%
D 7731 6521 290 290 3.75% 4.45%

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 7 16 104012 632.4 802 787 163.2
A 1 162 86364 524.28 802 787 163.2
A 1 178 42942 258.26 802 787 163.2
B 4 239 285903 1852.34 801 782 153.9
B 0 85 107987 696.48 801 782 153.9
B 15 204 52590 336.58 801 782 153.9
C 13 61 5700 27.62 769 774 178.3
C 12 4 3742 16.64 769 774 178.3
C 14 234 2717 10.89 769 774 178.3
D 1 52 1100935 6255.95 741 723 175.9
D 4 95 490938 2787.42 741 723 175.9
D 13 105 201296 1140.48 741 723 175.9

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