ASTROSAT CZTI

Data Quality Report

Orbit 46573

Creation date: 2024-06-27T23:24:55.151064
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/AS1C07_001T10_9000006232_46573cztM0_level2.fits modeM0/AS1C07_001T10_9000006232_46573cztM0_level2_quad_clean.evt
Size (bytes)534,147,840105,969,600
Size509.4 MB 101.1 MB
Events in quadrant A6,174,954691,079
Events in quadrant B3,294,313731,708
Events in quadrant C2,960,625722,569
Events in quadrant D6,834,502606,197

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0227432
B0146252
C0137072
D0249792

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65562443.721782%
B6556580.884686%
C6556510.777913%
D655672411.043319%

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 7581 6557 92 92 1.21% 1.40%
B 7581 6557 29 29 0.38% 0.44%
C 7581 6556 24 24 0.32% 0.37%
D 7581 6556 685 685 9.04% 10.45%

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 3326714 22854.13 703 686 145.5
A 0 243 50641 343.26 703 686 145.5
A 9 191 35174 236.98 703 686 145.5
B 2 2 171653 1222.74 713 690 139.8
B 5 32 85097 603.69 713 690 139.8
B 3 112 72979 517.02 713 690 139.8
C 12 249 58128 346.22 713 716 165.8
C 12 2 57666 343.44 713 716 165.8
C 12 250 32866 193.88 713 716 165.8
D 13 138 2322839 13659.47 681 658 170.0
D 1 52 846274 4974.06 681 658 170.0
D 2 120 397008 2331.4 681 658 170.0

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