ASTROSAT CZTI

Data Quality Report

Orbit 32297

Creation date: 2024-06-27T20:38:34.655552
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/AS1A10_005T01_9000004700_32297cztM0_level2.evt modeM0/AS1A10_005T01_9000004700_32297cztM0_level2_quad_clean.evt
Size (bytes)643,671,36076,573,440
Size613.9 MB 73.0 MB
Events in quadrant A3,439,520483,345
Events in quadrant B5,568,153466,897
Events in quadrant C3,943,284446,751
Events in quadrant D6,071,734435,897

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145763
B0215222
C0160182
D0229682

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6971841.204992%
B69711982.840339%
C69711542.209152%
D69711532.194807%

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 7691 6972 15 15 0.20% 0.22%
B 7691 6972 24 24 0.31% 0.34%
C 7691 6972 14 14 0.18% 0.20%
D 7691 6972 70 70 0.91% 1.00%

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 0 6 51670 292.86 867 849 173.5
A 13 6 18351 100.86 867 849 173.5
A 13 254 17216 94.32 867 849 173.5
B 6 159 1978189 12030.31 856 835 164.4
B 5 172 104384 630.0 856 835 164.4
B 0 190 64358 386.48 856 835 164.4
C 3 233 468186 2387.01 830 835 195.8
C 14 238 136845 694.67 830 835 195.8
C 0 10 44519 223.12 830 835 195.8
D 8 195 2549487 12634.85 834 810 201.7
D 12 233 129981 640.35 834 810 201.7
D 13 249 105969 521.32 834 810 201.7

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