ASTROSAT CZTI

Data Quality Report

Orbit 21349

Creation date: 2024-06-27T18:26:38.377800
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/AS1A05_041T01_9000003150_21349cztM0_level2.evt modeM0/AS1A05_041T01_9000003150_21349cztM0_level2_quad_clean.evt
Size (bytes)257,469,12020,923,200
Size245.5 MB 20.0 MB
Events in quadrant A1,302,635123,434
Events in quadrant B1,309,516124,264
Events in quadrant C1,256,362119,873
Events in quadrant D3,780,479108,368

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0460
B0460
C0460
D0460

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A054381
B053861
C051921
D0127385

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2167884.060914%
B21671004.614675%
C21671014.660821%
D216665530.240074%

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 3427 2167 0 0 0.00% 0.00%
B 3427 2167 4 4 0.12% 0.18%
C 3427 2167 0 0 0.00% 0.00%
D 3426 2166 431 431 12.58% 19.90%

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 5 168 31245 462.71 329 323 66.8
A 11 47 3207 43.16 329 323 66.8
A 13 254 3030 40.51 329 323 66.8
B 3 64 30839 487.74 321 314 62.6
B 0 230 10304 159.62 321 314 62.6
B 12 111 7243 110.71 321 314 62.6
C 14 238 49666 677.94 308 311 72.8
C 13 61 2185 25.74 308 311 72.8
C 7 247 2176 25.62 308 311 72.8
D 13 174 2493714 34333.51 299 292 72.6
D 1 52 50424 690.3 299 292 72.6
D 13 104 38712 529.03 299 292 72.6

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