ASTROSAT CZTI

Data Quality Report

Orbit 14342

Creation date: 2024-06-27T16:53:46.508364
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_078T01_9000002110_14342cztM0_level2.evt modeM0/AS1G08_078T01_9000002110_14342cztM0_level2_quad_clean.evt
Size (bytes)180,264,96054,633,600
Size171.9 MB 52.1 MB
Events in quadrant A1,292,326384,857
Events in quadrant B1,399,021376,197
Events in quadrant C1,295,951369,943
Events in quadrant D1,310,911354,938

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A06616
B06115
C06517
D06216

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A067311521
B073121744
C067171456
D073461924

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0175
B0166
C0177
D0186

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A235560.254777%
B2313733.156074%
C234950.212857%
D2326200.859845%

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 7803 2452 0 0 0.00% 0.00%
B 7803 2420 41 41 0.53% 1.69%
C 7803 2461 0 0 0.00% 0.00%
D 7803 2453 10 10 0.13% 0.41%

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 53826 824.62 319 314 64.9
A 8 15 10210 152.5 319 314 64.9
A 0 226 2760 37.69 319 314 64.9
B 10 16 154891 2626.46 310 303 58.9
B 0 229 26370 442.88 310 303 58.9
B 12 111 6429 104.08 310 303 58.9
C 3 233 93223 1305.35 308 311 71.2
C 13 61 2255 27.31 308 311 71.2
C 7 159 725 5.82 308 311 71.2
D 5 222 49910 691.25 301 295 71.8
D 2 120 49876 690.78 301 295 71.8
D 12 110 23962 329.74 301 295 71.8

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