ASTROSAT CZTI

Data Quality Report

Orbit 48359

Creation date: 2024-09-07T10:36:46.023445
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/AS1A13_029T01_9000006426_48359cztM0_level2.fits modeM0/AS1A13_029T01_9000006426_48359cztM0_level2_quad_clean.evt
Size (bytes)452,419,200110,753,280
Size431.5 MB 105.6 MB
Events in quadrant A7,063,432724,727
Events in quadrant B3,238,279770,152
Events in quadrant C3,013,466737,256
Events in quadrant D2,932,801673,340

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0262432
B0137712
C0133772
D0132272

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0190
C0190
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64293325.164100%
B64291021.586561%
C6429620.964380%
D6428630.980087%

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 7609 6429 104 104 1.37% 1.62%
B 7609 6430 11 11 0.14% 0.17%
C 7609 6430 11 11 0.14% 0.17%
D 7608 6428 3 3 0.04% 0.05%

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 4019505 25892.12 744 727 155.2
A 13 248 158713 1017.87 744 727 155.2
A 13 254 12616 76.6 744 727 155.2
B 4 21 90600 613.59 745 723 146.5
B 0 200 51885 349.28 745 723 146.5
B 0 186 46994 315.89 745 723 146.5
C 12 2 48268 275.24 739 744 172.7
C 15 208 35276 199.99 739 744 172.7
C 12 249 17811 98.84 739 744 172.7
D 2 233 31166 163.3 745 723 186.4
D 2 234 29563 154.7 745 723 186.4
D 2 249 26715 139.42 745 723 186.4

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