ASTROSAT CZTI

Data Quality Report

Orbit 07372

Creation date: 2024-06-27T15:19:04.197808
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/AS1G06_151T02_9000001010_07372cztM0_level2.evt modeM0/AS1G06_151T02_9000001010_07372cztM0_level2_quad_clean.evt
Size (bytes)1,328,325,120231,177,600
Size1.2 GB 220.5 MB
Events in quadrant A10,778,4161,413,925
Events in quadrant B9,380,9651,458,972
Events in quadrant C8,525,9801,456,246
Events in quadrant D10,282,1781,387,146

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04511670
B040704152
C03869763
D043842121

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03800
B03800
C03800
D03802

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A186498884.761649%
B186294452.388749%
C186521820.975767%
D186464662.499196%

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 19597 18683 293 293 1.50% 1.57%
B 19597 18681 8 8 0.04% 0.04%
C 19597 18685 4 4 0.02% 0.02%
D 19597 18682 179 179 0.91% 0.96%

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 15 234 1472624 3334.97 2163 2112 440.9
A 14 111 718560 1624.83 2163 2112 440.9
A 15 239 206290 463.06 2163 2112 440.9
B 0 187 671121 1572.85 2204 2147 425.3
B 0 214 126424 292.19 2204 2147 425.3
B 12 111 44751 100.17 2204 2147 425.3
C 9 68 97821 192.23 2134 2143 497.7
C 8 229 54141 104.47 2134 2143 497.7
C 1 16 48307 92.75 2134 2143 497.7
D 14 34 1215971 2321.55 2122 2057 522.9
D 1 52 433242 824.62 2122 2057 522.9
D 1 20 182152 344.42 2122 2057 522.9

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