ASTROSAT CZTI

Data Quality Report

Orbit 47725

Creation date: 2024-07-25T21:24:43.272773
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/AS1T05_213T01_9000006344_47725cztM0_level2.fits modeM0/AS1T05_213T01_9000006344_47725cztM0_level2_quad_clean.evt
Size (bytes)563,532,480117,650,880
Size537.4 MB 112.2 MB
Events in quadrant A7,628,642761,728
Events in quadrant B4,421,231781,180
Events in quadrant C3,873,841778,585
Events in quadrant D4,355,481719,135

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0281583
B0182792
C0171582
D0182902

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A74924385.846236%
B74933624.831176%
C74932753.670092%
D74932443.256373%

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 7847 7493 5 5 0.06% 0.07%
B 7848 7494 81 81 1.03% 1.08%
C 7848 7494 155 155 1.98% 2.07%
D 7848 7494 70 70 0.89% 0.93%

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 10 83 4315778 25470.74 820 801 169.4
A 9 191 118358 693.92 820 801 169.4
A 13 248 21621 122.89 820 801 169.4
B 5 255 751097 4673.88 818 790 160.5
B 0 200 332903 2068.83 818 790 160.5
B 0 198 39642 242.02 818 790 160.5
C 14 254 483283 2540.36 813 815 189.9
C 12 2 141819 742.44 813 815 189.9
C 6 247 54917 284.87 813 815 189.9
D 2 249 390514 1881.16 822 793 207.2
D 2 165 327767 1578.28 822 793 207.2
D 10 181 192373 924.74 822 793 207.2

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