ASTROSAT CZTI

Data Quality Report

Orbit 05381

Creation date: 2024-06-27T14:54:57.977872
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/AS1G05_243T01_9000000682_05381cztM0_level2.evt modeM0/AS1G05_243T01_9000000682_05381cztM0_level2_quad_clean.evt
Size (bytes)543,271,68049,029,120
Size518.1 MB 46.8 MB
Events in quadrant A2,511,952297,320
Events in quadrant B2,430,518300,653
Events in quadrant C2,280,256300,444
Events in quadrant D8,911,164254,136

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0980
B0980
C0980
D0980

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0107821
B0104153
C0101351
D0296446

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A47132134.519414%
B4712891.888795%
C4713541.145767%
D4712133828.395586%

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 5788 4713 51 51 0.88% 1.08%
B 5787 4712 11 11 0.19% 0.23%
C 5788 4713 0 0 0.00% 0.00%
D 5788 4713 1642 1642 28.37% 34.84%

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 258852 2255.1 551 538 114.5
A 15 174 61039 528.18 551 538 114.5
A 0 50 57711 499.12 551 538 114.5
B 4 80 111762 1019.54 562 548 109.1
B 15 204 67163 610.69 562 548 109.1
B 10 245 25032 224.45 562 548 109.1
C 1 16 154416 1214.23 543 547 126.7
C 13 61 4321 29.78 543 547 126.7
C 12 4 3949 26.85 543 547 126.7
D 7 237 6782838 53780.65 511 495 126.1
D 4 95 55824 438.73 511 495 126.1
D 11 18 32723 255.55 511 495 126.1

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