ASTROSAT CZTI

Data Quality Report

Orbit 03369

Creation date: 2024-06-27T14:28:06.474766
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_112T01_9000000452_03369cztM0_level2.evt modeM0/AS1G05_112T01_9000000452_03369cztM0_level2_quad_clean.evt
Size (bytes)455,132,16073,016,640
Size434.0 MB 69.6 MB
Events in quadrant A3,221,696443,161
Events in quadrant B3,680,811442,219
Events in quadrant C3,290,285435,840
Events in quadrant D3,135,052422,139

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141173
B0155712
C0142662
D0140842

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6707781.162964%
B67071141.699717%
C6707731.088415%
D6707751.118235%

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 8717 6709 1 1 0.01% 0.01%
B 8717 6709 4 4 0.05% 0.06%
C 8717 6709 20 20 0.23% 0.30%
D 8717 6709 12 12 0.14% 0.18%

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 50 44663 262.06 804 785 167.4
A 14 249 40822 239.12 804 785 167.4
A 0 31 17625 100.58 804 785 167.4
B 14 167 237955 1499.17 815 797 158.2
B 15 204 222207 1399.62 815 797 158.2
B 0 229 29591 182.02 815 797 158.2
C 14 223 104469 565.69 784 789 183.3
C 9 54 57672 310.36 784 789 183.3
C 1 192 30336 161.21 784 789 183.3
D 13 223 52355 269.21 780 758 191.7
D 13 137 42347 217.0 780 758 191.7
D 13 239 31471 160.25 780 758 191.7

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