ASTROSAT CZTI

Data Quality Report

Orbit 27214

Creation date: 2024-06-27T19:37:47.888341
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_243T01_9000003918_27214cztM0_level2.evt modeM0/AS1T03_243T01_9000003918_27214cztM0_level2_quad_clean.evt
Size (bytes)576,740,16095,097,600
Size550.0 MB 90.7 MB
Events in quadrant A3,391,961641,695
Events in quadrant B3,589,550653,170
Events in quadrant C3,309,187610,656
Events in quadrant D6,740,558525,719

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141080
B0146120
C0137950
D0243910

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6427931.447020%
B64261752.723312%
C64261171.820728%
D642697115.110489%

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 7697 6429 1 1 0.01% 0.02%
B 7696 6428 52 52 0.68% 0.81%
C 7696 6428 0 0 0.00% 0.00%
D 7696 6428 754 754 9.80% 11.73%

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 14 235 38803 221.32 861 847 171.5
A 2 79 17718 98.37 861 847 171.5
A 8 192 12034 65.23 861 847 171.5
B 3 64 172394 1062.65 855 836 161.4
B 15 33 43761 265.88 855 836 161.4
B 12 111 18727 110.82 855 836 161.4
C 14 238 132451 692.67 812 817 190.0
C 15 208 11282 55.07 812 817 190.0
C 13 61 5499 24.64 812 817 190.0
D 1 52 2556121 13115.79 770 753 194.8
D 12 17 738171 3784.9 770 753 194.8
D 12 233 203128 1038.72 770 753 194.8

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