ASTROSAT CZTI

Data Quality Report

Orbit 24530

Creation date: 2024-06-27T19:06:57.918443
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/AS1T03_183T01_9000003606_24530cztM0_level2.evt modeM0/AS1T03_183T01_9000003606_24530cztM0_level2_quad_clean.evt
Size (bytes)438,963,84099,106,560
Size418.6 MB 94.5 MB
Events in quadrant A2,975,134663,644
Events in quadrant B3,505,908652,826
Events in quadrant C3,005,308639,987
Events in quadrant D3,404,202630,024

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0128441
B0143161
C0128891
D0142122

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5940520.875421%
B59412524.241710%
C5941961.615890%
D5940360.606061%

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 7030 5941 0 0 0.00% 0.00%
B 7031 5942 121 121 1.72% 2.04%
C 7031 5942 11 11 0.16% 0.19%
D 7030 5941 7 7 0.10% 0.12%

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 14 111 99857 665.58 746 731 148.9
A 13 254 9265 57.3 746 731 148.9
A 3 137 6452 38.41 746 731 148.9
B 3 64 624025 4548.59 727 708 137.0
B 12 111 16425 114.69 727 708 137.0
B 11 111 14552 101.03 727 708 137.0
C 14 238 115480 700.84 710 715 163.8
C 2 16 104232 632.16 710 715 163.8
C 3 233 10272 58.36 710 715 163.8
D 1 52 576815 3327.47 724 703 173.1
D 8 195 38186 216.49 724 703 173.1
D 12 218 36254 205.33 724 703 173.1

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