ASTROSAT CZTI

Data Quality Report

Orbit 13006

Creation date: 2024-06-27T16:34:58.989789
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/AS1G08_055T01_9000001912_13006cztM0_level2.evt modeM0/AS1G08_055T01_9000001912_13006cztM0_level2_quad_clean.evt
Size (bytes)221,143,68046,054,080
Size210.9 MB 43.9 MB
Events in quadrant A1,579,399296,851
Events in quadrant B2,176,677282,343
Events in quadrant C1,334,066297,650
Events in quadrant D1,384,564286,857

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0660
B0660
C0660
D0660

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A068600
B086300
C064980
D065730

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3240160.493827%
B32402096.450617%
C324000.000000%
D324000.000000%

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 3241 3241 6 6 0.19% 0.19%
B 3241 3241 133 133 4.10% 4.10%
C 3241 3241 0 0 0.00% 0.00%
D 3241 3241 0 0 0.00% 0.00%

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 12 189 71315 961.98 353 345 73.8
A 15 223 37577 504.67 353 345 73.8
A 8 15 28680 384.07 353 345 73.8
B 4 239 541020 8181.85 343 335 66.1
B 3 64 181326 2738.82 343 335 66.1
B 3 209 60282 907.14 343 335 66.1
C 12 4 7523 89.99 340 342 79.8
C 13 61 2586 28.12 340 342 79.8
C 14 234 1169 10.36 340 342 79.8
D 1 52 58637 700.99 337 327 83.2
D 8 195 43299 516.6 337 327 83.2
D 2 234 13101 153.57 337 327 83.2

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