ASTROSAT CZTI

Data Quality Report

Orbit 26011

Creation date: 2024-06-27T19:23:49.056035
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_068T01_9000003760_26011cztM0_level2.evt modeM0/AS1A07_068T01_9000003760_26011cztM0_level2_quad_clean.evt
Size (bytes)580,573,440118,189,440
Size553.7 MB 112.7 MB
Events in quadrant A3,190,495843,723
Events in quadrant B3,220,656838,444
Events in quadrant C3,165,982791,135
Events in quadrant D7,616,566704,251

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132310
B0132930
C0131900
D0266790

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A57461312.279847%
B57471372.383852%
C57471873.253872%
D5747138424.082130%

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 7036 5746 0 0 0.00% 0.00%
B 7037 5747 5 5 0.07% 0.09%
C 7037 5747 0 0 0.00% 0.00%
D 7036 5746 1249 1249 17.75% 21.74%

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 13 254 8981 50.25 828 815 162.5
A 0 226 7170 39.1 828 815 162.5
A 3 137 6911 37.51 828 815 162.5
B 10 245 53294 354.08 800 782 148.3
B 0 190 23934 156.11 800 782 148.3
B 15 222 17724 114.24 800 782 148.3
C 14 238 126470 710.97 772 779 176.8
C 3 233 20742 112.92 772 779 176.8
C 2 16 6749 33.77 772 779 176.8
D 1 52 4563895 24584.15 744 726 185.6
D 12 1 102007 545.65 744 726 185.6
D 12 233 89214 476.73 744 726 185.6

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