ASTROSAT CZTI

Data Quality Report

Orbit 00800

Creation date: 2024-06-27T14:03:06.532197
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/AS1P01_010T01_9000000112_00800cztM0_level2.evt modeM0/AS1P01_010T01_9000000112_00800cztM0_level2_quad_clean.evt
Size (bytes)1,093,023,360101,257,920
Size1.0 GB 96.6 MB
Events in quadrant A8,189,199655,225
Events in quadrant B8,681,410660,581
Events in quadrant C8,070,876642,254
Events in quadrant D7,704,970629,482

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0291670
B0306650
C0288510
D0277850

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6874220.320047%
B6875150.218182%
C687490.130928%
D6874350.509165%

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 6874 6874 320 320 4.66% 4.66%
B 6875 6875 410 410 5.96% 5.96%
C 6874 6874 307 307 4.47% 4.47%
D 6874 6874 290 290 4.22% 4.22%

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 15 233 27359 49.58 2114 2125 508.9
A 15 171 12828 21.03 2114 2125 508.9
A 14 79 12639 20.66 2114 2125 508.9
B 15 22 94176 174.8 2232 2231 526.0
B 5 191 42474 76.51 2232 2231 526.0
B 7 221 30239 53.25 2232 2231 526.0
C 15 241 50993 86.07 2029 2101 568.1
C 3 111 35037 57.98 2029 2101 568.1
C 3 79 29324 47.92 2029 2101 568.1
D 13 170 163360 264.48 1954 2024 610.0
D 13 13 86306 138.16 1954 2024 610.0
D 13 25 81843 130.85 1954 2024 610.0

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