ASTROSAT CZTI

Data Quality Report

Orbit 22452

Creation date: 2024-06-27T18:41:07.735953
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/AS1A07_056T01_9000003330_22452cztM0_level2.evt modeM0/AS1A07_056T01_9000003330_22452cztM0_level2_quad_clean.evt
Size (bytes)461,980,800132,909,120
Size440.6 MB 126.8 MB
Events in quadrant A3,137,877896,781
Events in quadrant B4,022,779903,389
Events in quadrant C3,319,166886,089
Events in quadrant D3,054,446870,849

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138622
B0164562
C0142092
D0139532

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6721590.877846%
B67213114.627288%
C67211071.592025%
D6721420.624907%

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 7836 6721 0 0 0.00% 0.00%
B 7836 6721 128 128 1.63% 1.90%
C 7836 6722 0 0 0.00% 0.00%
D 7836 6722 1 1 0.01% 0.01%

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 6 240 31904 192.04 806 788 162.0
A 13 254 9870 56.05 806 788 162.0
A 0 226 6976 38.19 806 788 162.0
B 10 245 858550 5746.83 798 780 149.3
B 12 111 18095 116.01 798 780 149.3
B 11 111 15596 99.26 798 780 149.3
C 14 238 125803 693.82 783 787 180.2
C 3 9 47279 258.02 783 787 180.2
C 10 22 28092 151.54 783 787 180.2
D 2 234 29046 148.84 787 762 190.0
D 1 52 24257 123.64 787 762 190.0
D 9 85 20620 104.5 787 762 190.0

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