ASTROSAT CZTI

Data Quality Report

Orbit 09609

Creation date: 2024-06-27T15:48:20.403927
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_238T01_9000001364_09609cztM0_level2.evt modeM0/AS1G05_238T01_9000001364_09609cztM0_level2_quad_clean.evt
Size (bytes)399,113,28073,275,840
Size380.6 MB 69.9 MB
Events in quadrant A2,930,145462,340
Events in quadrant B2,915,352464,060
Events in quadrant C2,805,726447,350
Events in quadrant D3,036,873435,105

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0121752
B0121321
C0120661
D0127451

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5864661.125512%
B5864761.296044%
C5864400.682128%
D5864530.903820%

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 7094 5865 0 0 0.00% 0.00%
B 7094 5865 0 0 0.00% 0.00%
C 7094 5865 2 2 0.03% 0.03%
D 7094 5865 4 4 0.06% 0.07%

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 13 14 19153 120.78 755 739 152.5
A 0 226 7020 41.2 755 739 152.5
A 12 194 6174 35.65 755 739 152.5
B 12 111 15769 105.43 744 727 142.7
B 11 111 13010 86.09 744 727 142.7
B 14 111 10018 65.12 744 727 142.7
C 14 234 22052 129.49 714 718 164.7
C 13 61 5434 28.62 714 718 164.7
C 3 202 1768 6.37 714 718 164.7
D 8 195 120826 640.39 719 702 187.6
D 1 52 78048 412.34 719 702 187.6
D 2 234 21563 111.21 719 702 187.6

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