ASTROSAT CZTI

Data Quality Report

Orbit 47396

Creation date: 2024-07-03T17:43:50.329614
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/AS1A13_093T25_9000006324_47396cztM0_level2.fits modeM0/AS1A13_093T25_9000006324_47396cztM0_level2_quad_clean.evt
Size (bytes)886,544,640189,858,240
Size845.5 MB 181.1 MB
Events in quadrant A11,626,7241,252,081
Events in quadrant B7,062,6141,258,771
Events in quadrant C6,761,2291,245,930
Events in quadrant D6,420,8921,146,846

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0101
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0440641307
B029880536
C029409799
D028476559

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02513
B02564
C02562
D02551

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A121305244.319868%
B122578817.187729%
C121943332.730851%
D122563392.765992%

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 13454 12342 19 19 0.14% 0.15%
B 13454 12401 511 511 3.80% 4.12%
C 13455 12387 120 120 0.89% 0.97%
D 13455 12415 121 121 0.90% 0.97%

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 10 83 6075492 20976.92 1383 1351 289.6
A 9 191 131097 448.08 1383 1351 289.6
A 15 235 45630 152.92 1383 1351 289.6
B 5 32 1403410 5148.87 1371 1325 272.3
B 4 171 50663 181.18 1371 1325 272.3
B 12 48 43901 156.35 1371 1325 272.3
C 0 207 1233331 3798.79 1370 1376 324.3
C 3 233 134111 409.29 1370 1376 324.3
C 10 20 27402 80.25 1370 1376 324.3
D 2 249 516523 1474.38 1380 1334 349.4
D 2 165 317672 905.3 1380 1334 349.4
D 11 224 102806 290.39 1380 1334 349.4

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