ASTROSAT CZTI

Data Quality Report

Orbit 37563

Creation date: 2024-06-27T21:41:33.895272
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/AS1C07_001T11_9000005336_37563cztM0_level2.evt modeM0/AS1C07_001T11_9000005336_37563cztM0_level2_quad_clean.evt
Size (bytes)610,387,20092,946,240
Size582.1 MB 88.6 MB
Events in quadrant A2,626,258658,700
Events in quadrant B3,188,469663,541
Events in quadrant C2,809,845673,394
Events in quadrant D9,528,209473,012

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0109503
B0127212
C0113052
D0317172

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250
B0250
C0250
D0260

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4920280.569106%
B49201493.028455%
C49201032.093496%
D4920252651.341463%

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 6953 4921 21 21 0.30% 0.43%
B 6953 4921 73 73 1.05% 1.48%
C 6953 4921 83 83 1.19% 1.69%
D 6952 4920 2693 2693 38.74% 54.74%

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 314071 2752.1 567 555 113.9
A 13 248 40387 349.65 567 555 113.9
A 4 0 32523 280.62 567 555 113.9
B 0 189 270912 2569.14 568 553 105.2
B 5 172 193956 1837.85 568 553 105.2
B 0 213 100377 948.6 568 553 105.2
C 15 214 224083 1719.84 566 571 130.0
C 14 254 215841 1656.42 566 571 130.0
C 0 10 150540 1153.95 566 571 130.0
D 12 235 6919223 61589.5 449 436 112.3
D 2 249 423601 3766.92 449 436 112.3
D 13 249 117528 1042.33 449 436 112.3

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