ASTROSAT CZTI

Data Quality Report

Orbit 07406

Creation date: 2024-06-27T15:19:27.376509
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/AS1G06_087T02_9000001016_07406cztM0_level2.evt modeM0/AS1G06_087T02_9000001016_07406cztM0_level2_quad_clean.evt
Size (bytes)252,743,04042,842,880
Size241.0 MB 40.9 MB
Events in quadrant A1,783,867257,690
Events in quadrant B1,888,600261,787
Events in quadrant C1,796,782258,558
Events in quadrant D1,923,258248,606

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0857
B0857
C0848
D0857

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A08512708
B08730692
C08523676
D09004684

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D0101

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3824391.019874%
B3836340.886340%
C3828240.626959%
D3832511.330898%

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 5121 3897 0 0 0.00% 0.00%
B 5121 3895 0 0 0.00% 0.00%
C 5121 3899 0 0 0.00% 0.00%
D 5121 3903 16 16 0.31% 0.41%

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 3 1 16741 174.11 458 448 93.6
A 0 226 4543 43.76 458 448 93.6
A 12 194 3989 37.84 458 448 93.6
B 0 214 68303 761.91 461 450 89.1
B 4 170 10870 117.0 461 450 89.1
B 12 111 9144 97.62 461 450 89.1
C 10 22 56321 528.68 445 445 105.7
C 13 61 3465 28.57 445 445 105.7
C 1 16 2256 17.14 445 445 105.7
D 14 34 155463 1410.9 445 431 109.9
D 2 216 30720 275.65 445 431 109.9
D 13 137 21991 196.21 445 431 109.9

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