ASTROSAT CZTI

Data Quality Report

Orbit 34405

Creation date: 2022-02-07T18:19:45.629877
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_085T01_9000004910_34405cztM0_level2.evt modeM0/AS1A05_085T01_9000004910_34405cztM0_level2_quad_clean.evt
Size (bytes)529,629,12096,503,040
Size505.1 MB 92.0 MB
Events in quadrant A2,662,527662,487
Events in quadrant B4,228,904638,773
Events in quadrant C2,948,119658,844
Events in quadrant D5,834,473584,107

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270
B0270
C0270
D0280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0114073
B0161052
C0120652
D0212532

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5398140.259355%
B53985059.355317%
C5398300.555761%
D539866012.226751%

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 7190 5399 0 0 0.00% 0.00%
B 7190 5399 345 345 4.80% 6.39%
C 7190 5399 15 15 0.21% 0.28%
D 7190 5399 524 524 7.29% 9.71%

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 35007 254.2 673 663 135.1
A 13 6 15109 106.92 673 663 135.1
A 9 143 10097 69.83 673 663 135.1
B 5 172 1463835 11900.63 644 630 123.0
B 0 190 102236 826.39 644 630 123.0
B 5 255 44337 355.48 644 630 123.0
C 15 214 228013 1541.05 643 649 147.5
C 0 10 80227 539.37 643 649 147.5
C 14 67 64235 430.98 643 649 147.5
D 7 80 1222031 8074.25 619 602 151.3
D 8 195 777720 5137.13 619 602 151.3
D 14 52 394357 2602.91 619 602 151.3

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