ASTROSAT CZTI

Data Quality Report

Orbit 22107

Creation date: 2024-06-27T18:36:41.631996
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/AS1A07_007T04_9000003276_22107cztM0_level2.evt modeM0/AS1A07_007T04_9000003276_22107cztM0_level2_quad_clean.evt
Size (bytes)639,285,120108,901,440
Size609.7 MB 103.9 MB
Events in quadrant A3,797,542725,779
Events in quadrant B3,737,110731,143
Events in quadrant C3,721,718699,501
Events in quadrant D7,588,774611,792

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0162442
B0160143
C0158952
D0277312

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76131331.747012%
B76131542.022856%
C76131692.219887%
D7613127416.734533%

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 7888 7616 10 10 0.13% 0.13%
B 7888 7616 2 2 0.03% 0.03%
C 7888 7616 0 0 0.00% 0.00%
D 7888 7616 1017 1017 12.89% 13.35%

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 5 16 90700 469.91 951 930 191.0
A 4 2 38740 197.92 951 930 191.0
A 13 254 12154 58.75 951 930 191.0
B 12 111 22167 117.5 943 917 180.9
B 11 111 19626 103.45 943 917 180.9
B 14 111 16461 85.95 943 917 180.9
C 14 238 141596 651.79 912 915 215.8
C 8 128 12657 54.4 912 915 215.8
C 8 112 6336 25.12 912 915 215.8
D 2 133 2536586 11845.29 876 850 214.1
D 11 176 1331044 6213.79 876 850 214.1
D 1 52 246105 1145.67 876 850 214.1

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