ASTROSAT CZTI

Data Quality Report

Orbit 53098

Creation date: 2025-07-24T13:39:27.666037
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/AS1C09_011T07_9000006488_53098cztM0_level2.fits modeM0/AS1C09_011T07_9000006488_53098cztM0_level2_quad_clean.evt
Size (bytes)1,202,650,56067,288,320
Size1.1 GB 64.2 MB
Events in quadrant A17,216,934100,737
Events in quadrant B4,025,069725,708
Events in quadrant C16,967,230105,306
Events in quadrant D5,737,563590,347

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0560980
B0172980
C0553760
D0221540

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7394652988.301325%
B73951752.366464%
C7395632085.463151%
D73955006.761325%

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 7393 7393 5949 5949 80.47% 80.47%
B 7395 7395 112 112 1.51% 1.51%
C 7394 7394 5681 5681 76.83% 76.83%
D 7395 7395 470 470 6.36% 6.36%

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 9 191 14861197 137953.81 426 415 107.7
A 7 206 287193 2662.18 426 415 107.7
A 6 248 136604 1264.25 426 415 107.7
B 2 249 403476 2517.02 751 726 160.0
B 1 207 124950 776.35 751 726 160.0
B 0 213 116856 725.77 751 726 160.0
C 1 241 8146446 92274.96 320 317 88.3
C 15 157 5799642 65691.63 320 317 88.3
C 15 224 1125956 12750.63 320 317 88.3
D 10 172 1232966 5865.2 728 695 210.1
D 2 249 455124 2162.93 728 695 210.1
D 0 5 284029 1348.57 728 695 210.1

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