ASTROSAT CZTI

Data Quality Report

Orbit 12293

Creation date: 2024-06-27T16:25:03.945006
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/AS1A04_183T02_9000001816_12293cztM0_level2.evt modeM0/AS1A04_183T02_9000001816_12293cztM0_level2_quad_clean.evt
Size (bytes)1,234,529,280156,864,960
Size1.1 GB 149.6 MB
Events in quadrant A7,132,2041,026,016
Events in quadrant B9,785,901941,103
Events in quadrant C6,016,9261,047,193
Events in quadrant D13,591,158853,284

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02600
B02600
C02600
D02600

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0292224
B0373403
C0268383
D0491143

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A127514733.709513%
B12751172313.512666%
C127512201.725355%
D12751327025.645047%

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 13202 12756 68 68 0.52% 0.53%
B 13202 12756 869 869 6.58% 6.81%
C 13202 12756 13 13 0.10% 0.10%
D 13201 12754 2309 2309 17.49% 18.10%

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 0 23 473054 1488.04 1546 1510 316.9
A 1 162 236287 740.88 1546 1510 316.9
A 1 178 124660 388.62 1546 1510 316.9
B 4 239 2752641 9924.25 1445 1409 277.2
B 3 64 670485 2413.49 1445 1409 277.2
B 0 85 295930 1062.4 1445 1409 277.2
C 15 208 116295 323.29 1510 1520 355.0
C 13 61 11003 26.71 1510 1520 355.0
C 4 254 6110 12.93 1510 1520 355.0
D 1 52 7908560 25123.43 1301 1266 314.7
D 10 199 328476 1039.63 1301 1266 314.7
D 7 71 82985 259.64 1301 1266 314.7

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