ASTROSAT CZTI

Data Quality Report

Orbit 47503

Creation date: 2024-07-10T21:28:43.331043
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_037T05_9000006332_47503cztM0_level2.fits modeM0/AS1A13_037T05_9000006332_47503cztM0_level2_quad_clean.evt
Size (bytes)443,056,32099,933,120
Size422.5 MB 95.3 MB
Events in quadrant A6,097,943673,969
Events in quadrant B3,388,442695,369
Events in quadrant C2,611,287667,741
Events in quadrant D3,856,837587,433

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0224973
B0138501
C0118211
D0152381

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A57452844.943429%
B57462243.898364%
C5746711.235642%
D57463235.621302%

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 6925 5745 20 20 0.29% 0.35%
B 6926 5747 61 61 0.88% 1.06%
C 6926 5747 1 1 0.01% 0.02%
D 6926 5746 157 157 2.27% 2.73%

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 3362410 23905.45 680 667 140.6
A 9 191 71007 500.19 680 667 140.6
A 13 248 35093 244.8 680 667 140.6
B 5 32 298442 2268.57 675 655 131.3
B 0 200 277655 2110.21 675 655 131.3
B 0 198 56112 422.48 675 655 131.3
C 0 207 9883 59.19 662 664 155.8
C 3 233 7362 43.0 662 664 155.8
C 12 250 5558 31.42 662 664 155.8
D 2 120 531394 3242.07 653 632 163.7
D 2 249 492628 3005.27 653 632 163.7
D 11 192 82532 500.27 653 632 163.7

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