ASTROSAT CZTI

Data Quality Report

Orbit 09173

Creation date: 2024-06-27T15:42:16.057188
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/AS1C02_027T01_9000001280_09173cztM0_level2.evt modeM0/AS1C02_027T01_9000001280_09173cztM0_level2_quad_clean.evt
Size (bytes)128,180,16031,311,360
Size122.2 MB 29.9 MB
Events in quadrant A1,223,349205,631
Events in quadrant B1,026,823208,999
Events in quadrant C733,641208,392
Events in quadrant D784,301204,318

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0474315
B041271
C033213
D034738

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D040

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0320
C0320
D0320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A16361297.885086%
B1640412.500000%
C163920.122026%
D163780.488699%

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 1640 1640 114 114 6.95% 6.95%
B 1640 1640 24 24 1.46% 1.46%
C 1640 1640 0 0 0.00% 0.00%
D 1640 1640 2 2 0.12% 0.12%

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 15 223 275146 6690.73 192 188 41.1
A 15 239 112111 2723.5 192 188 41.1
A 8 5 68984 1674.06 192 188 41.1
B 8 234 166964 4220.02 197 193 39.5
B 0 85 29365 738.18 197 193 39.5
B 0 229 20252 507.58 197 193 39.5
C 8 128 4842 105.92 185 185 44.0
C 8 112 2260 47.19 185 185 44.0
C 14 67 2064 42.73 185 185 44.0
D 9 64 21871 454.91 186 179 47.7
D 12 233 17185 356.64 186 179 47.7
D 13 104 15243 315.91 186 179 47.7

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