ASTROSAT CZTI

Data Quality Report

Orbit 04395

Creation date: 2024-06-27T14:41:24.154707
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/AS1G05_230T02_9000000548_04395cztM0_level2.evt modeM0/AS1G05_230T02_9000000548_04395cztM0_level2_quad_clean.evt
Size (bytes)294,439,68053,311,680
Size280.8 MB 50.8 MB
Events in quadrant A1,670,727340,605
Events in quadrant B2,188,125333,344
Events in quadrant C1,727,879333,488
Events in quadrant D3,053,457320,541

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0820
B0820
C0820
D0820

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A082074
B095311
C083651
D0120731

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4053200.493462%
B4054992.442033%
C4054190.468673%
D4054852.096695%

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 4054 4054 0 0 0.00% 0.00%
B 4054 4054 49 49 1.21% 1.21%
C 4054 4054 10 10 0.25% 0.25%
D 4054 4054 57 57 1.41% 1.41%

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 8 15 6948 72.44 428 417 90.2
A 13 14 5762 59.29 428 417 90.2
A 12 194 4468 44.93 428 417 90.2
B 14 167 419386 4980.38 433 423 84.1
B 10 16 50962 600.78 433 423 84.1
B 0 187 22943 267.7 433 423 84.1
C 14 48 45213 457.7 418 419 97.9
C 9 16 25469 255.96 418 419 97.9
C 9 247 13493 133.59 418 419 97.9
D 2 63 1177522 11654.58 410 397 101.0
D 9 35 122185 1205.81 410 397 101.0
D 12 233 54664 537.29 410 397 101.0

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