ASTROSAT CZTI

Data Quality Report

Orbit 14636

Creation date: 2024-06-27T16:57:48.186039
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_043T01_9000002156_14636cztM0_level2.evt modeM0/AS1A04_043T01_9000002156_14636cztM0_level2_quad_clean.evt
Size (bytes)603,936,000101,943,360
Size576.0 MB 97.2 MB
Events in quadrant A4,004,829650,524
Events in quadrant B3,987,154648,693
Events in quadrant C5,889,988636,736
Events in quadrant D3,903,534632,576

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0168503
B0168642
C0231132
D0168052

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7454500.670781%
B7454941.261068%
C74541542.066005%
D7454781.046418%

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 9480 7457 1 1 0.01% 0.01%
B 9480 7457 6 6 0.06% 0.08%
C 9480 7457 6 6 0.06% 0.08%
D 9480 7457 53 53 0.56% 0.71%

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 1 162 171063 937.23 895 877 181.6
A 0 23 89678 489.04 895 877 181.6
A 1 178 72663 395.33 895 877 181.6
B 0 189 257669 1514.65 897 873 169.5
B 0 230 52417 304.02 897 873 169.5
B 0 197 30663 175.71 897 873 169.5
C 3 233 2481179 12342.47 870 873 201.0
C 13 61 6123 26.12 870 873 201.0
C 3 234 5800 24.52 870 873 201.0
D 10 199 161476 735.04 870 846 218.5
D 12 110 149516 680.31 870 846 218.5
D 10 70 72834 329.42 870 846 218.5

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