ASTROSAT CZTI

Data Quality Report

Orbit 08005

Creation date: 2024-06-27T15:26:43.242507
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/AS1G06_154T01_9000001100_08005cztM0_level2.evt modeM0/AS1G06_154T01_9000001100_08005cztM0_level2_quad_clean.evt
Size (bytes)359,677,44067,798,080
Size343.0 MB 64.7 MB
Events in quadrant A2,429,261416,392
Events in quadrant B2,580,024428,551
Events in quadrant C2,442,765432,079
Events in quadrant D3,078,817403,830

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0109492
B0112371
C0109491
D0128611

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5313180.338792%
B5313460.865801%
C5313120.225861%
D53131382.597403%

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 6593 5314 0 0 0.00% 0.00%
B 6593 5314 11 11 0.17% 0.21%
C 6593 5314 0 0 0.00% 0.00%
D 6593 5314 100 100 1.52% 1.88%

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 0 226 5843 40.64 629 616 128.6
A 12 194 5276 36.24 629 616 128.6
A 13 14 4293 28.59 629 616 128.6
B 5 255 68776 562.95 637 623 121.1
B 5 250 25489 205.4 637 623 121.1
B 12 111 13525 106.57 637 623 121.1
C 1 16 11608 75.82 622 626 144.8
C 13 61 4892 29.45 622 626 144.8
C 14 67 2696 14.29 622 626 144.8
D 11 144 206742 1371.45 609 590 150.3
D 2 14 201855 1338.94 609 590 150.3
D 1 52 162475 1076.96 609 590 150.3

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