ASTROSAT CZTI

Data Quality Report

Orbit 14093

Creation date: 2024-06-27T16:50:16.341061
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_022T01_9000002078_14093cztM0_level2.evt modeM0/AS1G08_022T01_9000002078_14093cztM0_level2_quad_clean.evt
Size (bytes)628,652,16074,577,600
Size599.5 MB 71.1 MB
Events in quadrant A4,473,185486,599
Events in quadrant B5,727,593436,217
Events in quadrant C3,026,339481,303
Events in quadrant D5,389,565418,380

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0171972
B0211101
C0129681
D0201001

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62345308.501765%
B623497815.688162%
C6234500.802053%
D623498415.784408%

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 7225 6236 374 374 5.18% 6.00%
B 7225 6235 532 532 7.36% 8.53%
C 7225 6236 2 2 0.03% 0.03%
D 7225 6235 561 561 7.76% 9.00%

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 15 222 1326944 8850.25 738 721 149.9
A 9 143 232427 1546.24 738 721 149.9
A 12 189 43479 285.34 738 721 149.9
B 10 16 2501497 18769.42 700 682 133.2
B 10 245 368626 2761.54 700 682 133.2
B 4 80 45096 333.34 700 682 133.2
C 3 233 104814 611.37 741 745 170.2
C 0 207 24390 138.91 741 745 170.2
C 10 22 7179 37.8 741 745 170.2
D 1 52 2296956 13641.76 695 672 168.3
D 2 152 159294 942.34 695 672 168.3
D 8 195 96585 569.8 695 672 168.3

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