ASTROSAT CZTI

Data Quality Report

Orbit 36193

Creation date: 2024-06-27T21:23:31.528205
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/AS1A11_097T17_9000005170_36193cztM0_level2.evt modeM0/AS1A11_097T17_9000005170_36193cztM0_level2_quad_clean.evt
Size (bytes)583,879,68078,825,600
Size556.8 MB 75.2 MB
Events in quadrant A3,225,564492,900
Events in quadrant B3,197,671501,972
Events in quadrant C5,957,905482,940
Events in quadrant D4,851,856446,220

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136903
B0137582
C0218332
D0189612

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6639200.301250%
B6639140.210875%
C663988313.300196%
D66394877.335442%

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 9655 6641 3 3 0.03% 0.05%
B 9655 6641 5 5 0.05% 0.08%
C 9655 6641 750 750 7.77% 11.29%
D 9655 6641 396 396 4.10% 5.96%

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 188980 1227.66 764 749 153.3
A 9 143 36469 232.97 764 749 153.3
A 8 144 22561 142.26 764 749 153.3
B 5 172 112350 760.83 761 740 146.7
B 0 213 43508 291.54 761 740 146.7
B 4 232 27965 185.59 761 740 146.7
C 4 254 2484981 15165.34 704 708 163.8
C 15 214 283085 1723.78 704 708 163.8
C 15 208 267743 1630.13 704 708 163.8
D 2 250 902709 5112.33 725 706 176.4
D 12 6 553630 3133.84 725 706 176.4
D 13 249 374938 2121.06 725 706 176.4

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