ASTROSAT CZTI

Data Quality Report

Orbit 01052

Creation date: 2024-06-27T14:06:44.767417
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/AS1P01_998T02_9000000190_01052cztM0_level2.evt modeM0/AS1P01_998T02_9000000190_01052cztM0_level2_quad_clean.evt
Size (bytes)916,096,32097,490,880
Size873.7 MB 93.0 MB
Events in quadrant A6,653,837648,674
Events in quadrant B6,989,561654,341
Events in quadrant C6,606,588631,395
Events in quadrant D7,112,138616,122

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0238572
B0248631
C0237291
D0252971

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5755180.312772%
B5756300.521195%
C575690.156359%
D5756300.521195%

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 6780 5756 109 109 1.61% 1.89%
B 6781 5757 152 152 2.24% 2.64%
C 6781 5757 113 113 1.67% 1.96%
D 6781 5757 276 276 4.07% 4.79%

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 0 253 8417 16.06 1731 1741 415.6
A 11 79 7283 13.33 1731 1741 415.6
A 3 111 5443 8.91 1731 1741 415.6
B 5 249 61287 140.6 1791 1802 423.1
B 8 234 39755 89.71 1791 1802 423.1
B 15 22 29939 66.51 1791 1802 423.1
C 15 241 283822 634.72 1604 1659 444.5
C 3 111 22121 46.03 1604 1659 444.5
C 3 79 20738 42.92 1604 1659 444.5
D 12 22 1035642 2132.39 1567 1626 484.9
D 1 83 121642 247.5 1567 1626 484.9
D 10 125 23161 44.41 1567 1626 484.9

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