ASTROSAT CZTI

Data Quality Report

Orbit 13024

Creation date: 2024-06-27T16:35:12.092379
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_216T01_9000001916_13024cztM0_level2.evt modeM0/AS1A04_216T01_9000001916_13024cztM0_level2_quad_clean.evt
Size (bytes)582,914,88080,965,440
Size555.9 MB 77.2 MB
Events in quadrant A3,293,642517,334
Events in quadrant B3,988,597508,546
Events in quadrant C3,045,497521,248
Events in quadrant D6,879,444444,889

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139933
B0162182
C0134022
D0251262

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6587140.212540%
B65874466.770912%
C6587120.182177%
D658789813.632913%

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 7748 6589 1 1 0.01% 0.02%
B 7748 6589 218 218 2.81% 3.31%
C 7748 6589 1 1 0.01% 0.02%
D 7748 6589 757 757 9.77% 11.49%

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 12 189 178084 1127.15 781 766 157.3
A 1 162 25279 155.82 781 766 157.3
A 15 223 20962 128.38 781 766 157.3
B 4 239 873151 6174.11 756 736 141.3
B 3 64 61715 431.55 756 736 141.3
B 0 219 35562 246.46 756 736 141.3
C 14 234 6317 30.86 778 784 179.3
C 12 4 5958 28.86 778 784 179.3
C 13 61 5600 26.86 778 784 179.3
D 1 52 4090984 24215.85 712 693 168.9
D 8 195 88609 520.49 712 693 168.9
D 2 234 19042 108.63 712 693 168.9

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