ASTROSAT CZTI

Data Quality Report

Orbit 06338

Creation date: 2024-06-27T15:05:50.857372
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/AS1G06_151T01_9000000836_06338cztM0_level2.evt modeM0/AS1G06_151T01_9000000836_06338cztM0_level2_quad_clean.evt
Size (bytes)480,257,28063,843,840
Size458.0 MB 60.9 MB
Events in quadrant A3,301,287377,697
Events in quadrant B3,761,843374,328
Events in quadrant C3,100,861375,589
Events in quadrant D3,950,124362,800

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136303
B0151482
C0133242
D0157672

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0230

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6343550.867098%
B63432003.153082%
C6343480.756740%
D63431832.885070%

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 7588 6344 0 0 0.00% 0.00%
B 7588 6344 90 90 1.19% 1.42%
C 7588 6344 4 4 0.05% 0.06%
D 7588 6344 104 104 1.37% 1.64%

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 96862 589.12 807 792 163.1
A 15 236 43405 261.31 807 792 163.1
A 13 251 24489 145.31 807 792 163.1
B 3 64 590675 3832.82 807 791 153.9
B 12 111 15296 94.25 807 791 153.9
B 15 204 15076 92.82 807 791 153.9
C 4 254 50958 280.62 778 782 178.8
C 13 61 6143 29.98 778 782 178.8
C 5 237 5906 28.66 778 782 178.8
D 12 220 370859 1956.61 770 747 189.2
D 12 221 182926 963.1 770 747 189.2
D 13 46 135219 710.89 770 747 189.2

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