ASTROSAT CZTI

Data Quality Report

Orbit 26344

Creation date: 2024-06-27T19:27:41.063292
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/AS1A09_008T02_9000003796_26344cztM0_level2.evt modeM0/AS1A09_008T02_9000003796_26344cztM0_level2_quad_clean.evt
Size (bytes)662,345,280121,579,200
Size631.7 MB 115.9 MB
Events in quadrant A3,221,178866,636
Events in quadrant B3,329,912893,574
Events in quadrant C3,565,971846,840
Events in quadrant D9,522,139641,275

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133690
B0136900
C0143630
D0324690

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0190
C0190
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6207631.014983%
B6207931.498308%
C62061372.207541%
D6206227536.658073%

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 7547 6208 0 0 0.00% 0.00%
B 7547 6208 1 1 0.01% 0.02%
C 7546 6207 7 7 0.09% 0.11%
D 7546 6206 2043 2043 27.07% 32.92%

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 13 254 10271 58.17 834 819 162.5
A 3 137 7183 39.16 834 819 162.5
A 0 226 7039 38.28 834 819 162.5
B 0 230 21588 134.56 840 822 154.3
B 0 219 21497 133.97 840 822 154.3
B 12 111 17534 108.29 840 822 154.3
C 3 233 250068 1332.25 813 822 187.1
C 14 238 134817 716.22 813 822 187.1
C 2 16 14961 75.57 813 822 187.1
D 1 52 6971520 44710.33 661 648 155.9
D 11 176 22532 140.36 661 648 155.9
D 2 234 21792 135.62 661 648 155.9

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