ASTROSAT CZTI

Data Quality Report

Orbit 36622

Creation date: 2024-06-27T21:29:18.016973
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/AS1A10_073T02_9000005226_36622cztM0_level2.evt modeM0/AS1A10_073T02_9000005226_36622cztM0_level2_quad_clean.evt
Size (bytes)475,470,72049,495,680
Size453.4 MB 47.2 MB
Events in quadrant A2,896,965289,607
Events in quadrant B3,304,378290,947
Events in quadrant C3,369,199288,620
Events in quadrant D4,475,751263,881

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0115703
B0129502
C0129902
D0169192

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270
B0270
C0270
D0280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5207200.384098%
B52071643.149606%
C52071663.188016%
D52072825.415786%

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 7240 5208 5 5 0.07% 0.10%
B 7240 5208 114 114 1.57% 2.19%
C 7240 5208 113 113 1.56% 2.17%
D 7239 5207 226 226 3.12% 4.34%

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 10 83 200345 1499.81 670 659 133.1
A 15 223 87225 650.18 670 659 133.1
A 9 143 13685 97.84 670 659 133.1
B 5 200 267885 2169.81 663 647 123.2
B 5 255 226930 1837.28 663 647 123.2
B 0 213 85357 687.79 663 647 123.2
C 0 10 413799 2774.36 651 657 148.9
C 15 214 220605 1477.01 651 657 148.9
C 14 254 116841 780.21 651 657 148.9
D 12 235 968139 6289.74 639 624 153.8
D 2 249 371621 2411.82 639 624 153.8
D 13 249 207709 1346.24 639 624 153.8

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