ASTROSAT CZTI

Data Quality Report

Orbit 33303

Creation date: 2024-06-27T20:47:16.507588
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/AS1T04_072T01_9000004780_33303cztM0_level2.evt modeM0/AS1T04_072T01_9000004780_33303cztM0_level2_quad_clean.evt
Size (bytes)581,454,72053,939,520
Size554.5 MB 51.4 MB
Events in quadrant A4,728,788313,207
Events in quadrant B3,529,683320,661
Events in quadrant C3,447,212318,672
Events in quadrant D5,531,604294,689

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0177383
B0140852
C0135012
D0204132

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A55083506.354394%
B55082384.320988%
C5508981.779230%
D55083516.372549%

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 7211 5509 217 217 3.01% 3.94%
B 7211 5509 148 148 2.05% 2.69%
C 7211 5509 87 87 1.21% 1.58%
D 7211 5509 284 284 3.94% 5.16%

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 15 169 2140169 16421.7 650 637 130.3
A 14 254 37124 280.05 650 637 130.3
A 12 16 17994 133.22 650 637 130.3
B 5 172 747130 6016.55 652 635 124.1
B 0 219 108217 867.08 652 635 124.1
B 0 190 34909 276.24 652 635 124.1
C 15 208 393990 2649.26 636 641 148.5
C 15 214 255488 1716.43 636 641 148.5
C 10 49 124692 835.5 636 641 148.5
D 8 195 1577615 9685.58 617 603 162.8
D 7 223 423932 2599.97 617 603 162.8
D 13 249 371004 2274.9 617 603 162.8

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