ASTROSAT CZTI

Data Quality Report

Orbit 12112

Creation date: 2024-06-27T16:22:33.633308
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/AS1G08_065T01_9000001796_12112cztM0_level2.evt modeM0/AS1G08_065T01_9000001796_12112cztM0_level2_quad_clean.evt
Size (bytes)523,909,44078,791,040
Size499.6 MB 75.1 MB
Events in quadrant A3,420,889492,799
Events in quadrant B4,496,394478,744
Events in quadrant C3,218,922482,720
Events in quadrant D4,278,755467,187

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143543
B0177652
C0138882
D0170492

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6663931.395768%
B66633174.757617%
C6663650.975537%
D66631992.986643%

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 7814 6664 4 4 0.05% 0.06%
B 7814 6664 122 122 1.56% 1.83%
C 7814 6664 3 3 0.04% 0.05%
D 7814 6664 96 96 1.23% 1.44%

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 1 162 33475 191.63 853 838 170.3
A 5 16 24970 141.7 853 838 170.3
A 14 63 16649 92.84 853 838 170.3
B 4 239 852116 5497.09 832 814 154.9
B 15 204 122718 787.17 832 814 154.9
B 0 85 84518 540.5 832 814 154.9
C 15 208 19263 98.68 816 821 186.9
C 14 234 18316 93.61 816 821 186.9
C 13 61 5909 27.22 816 821 186.9
D 1 52 903713 4676.93 811 789 193.1
D 10 50 91933 472.1 811 789 193.1
D 10 199 91528 470.01 811 789 193.1

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