ASTROSAT CZTI

Data Quality Report

Orbit 27588

Creation date: 2024-06-27T19:41:48.240525
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/AS1C05_019T04_9000003974_27588cztM0_level2.evt modeM0/AS1C05_019T04_9000003974_27588cztM0_level2_quad_clean.evt
Size (bytes)481,573,440109,065,600
Size459.3 MB 104.0 MB
Events in quadrant A3,213,923719,776
Events in quadrant B3,328,395742,117
Events in quadrant C3,326,206714,148
Events in quadrant D4,282,256681,308

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136310
B0140010
C0140070
D0172130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6389290.453905%
B6389380.594772%
C6389801.252152%
D63891532.394741%

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 7745 6390 5 5 0.06% 0.08%
B 7745 6390 1 1 0.01% 0.02%
C 7745 6390 1 1 0.01% 0.02%
D 7745 6390 137 137 1.77% 2.14%

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 8 192 14917 86.63 829 814 162.8
A 13 254 11775 67.33 829 814 162.8
A 3 137 7145 38.89 829 814 162.8
B 0 230 18649 115.35 836 818 154.6
B 12 111 18487 114.3 836 818 154.6
B 15 32 17830 110.05 836 818 154.6
C 14 238 134164 718.18 809 817 185.7
C 2 16 22373 116.1 809 817 185.7
C 1 16 6593 31.11 809 817 185.7
D 1 52 1130672 6033.55 797 778 187.3
D 2 250 81966 433.54 797 778 187.3
D 2 234 25958 134.46 797 778 187.3

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