ASTROSAT CZTI

Data Quality Report

Orbit 48605

Creation date: 2024-09-23T10:24:39.173754
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_037T01_9000006436_48605cztM0_level2.fits modeM0/AS1A13_037T01_9000006436_48605cztM0_level2_quad_clean.evt
Size (bytes)445,507,200102,703,680
Size424.9 MB 97.9 MB
Events in quadrant A6,524,300671,021
Events in quadrant B3,883,710691,220
Events in quadrant C2,681,478691,366
Events in quadrant D2,913,085617,157

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0234982
B0161132
C0128103
D0133282

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0230

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62912664.228263%
B62923916.214240%
C6291310.492767%
D6291651.033222%

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 8621 6293 139 139 1.61% 2.21%
B 8622 6294 221 221 2.56% 3.51%
C 8621 6293 3 3 0.03% 0.05%
D 8621 6293 29 29 0.34% 0.46%

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 3885344 27599.65 673 659 140.8
A 13 248 14858 100.88 673 659 140.8
A 13 254 12065 81.04 673 659 140.8
B 12 16 1155260 8818.33 668 646 130.9
B 0 186 52955 399.51 668 646 130.9
B 0 183 23117 171.62 668 646 130.9
C 12 249 28510 173.87 678 682 160.0
C 3 233 7712 43.92 678 682 160.0
C 14 254 4727 25.27 678 682 160.0
D 2 165 154040 924.17 666 646 166.0
D 10 199 102946 616.34 666 646 166.0
D 2 249 40710 241.38 666 646 166.0

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