ASTROSAT CZTI

Data Quality Report

Orbit 42114

Creation date: 2024-06-27T22:37:04.197218
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/AS1A12_044T22_9000005750_42114cztM0_level2.fits modeM0/AS1A12_044T22_9000005750_42114cztM0_level2_quad_clean.evt
Size (bytes)420,258,24083,494,080
Size400.8 MB 79.6 MB
Events in quadrant A6,921,737521,097
Events in quadrant B2,227,064594,352
Events in quadrant C2,393,590567,920
Events in quadrant D3,619,718488,731

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0241042
B0102102
C0102162
D0144452

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0420
B0420
C0420
D0420

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A507768513.492220%
B507880.157542%
C507850.098464%
D50784037.936195%

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 9293 5079 531 531 5.71% 10.45%
B 9294 5080 2 2 0.02% 0.04%
C 9294 5080 0 0 0.00% 0.00%
D 9294 5080 335 335 3.60% 6.59%

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 15 222 4258924 37995.67 546 535 112.1
A 10 83 492286 4387.67 546 535 112.1
A 15 223 46008 405.73 546 535 112.1
B 12 111 13791 120.9 562 546 109.6
B 11 111 12735 111.26 562 546 109.6
B 14 111 12376 107.99 562 546 109.6
C 15 214 214640 1632.19 559 564 131.2
C 13 61 3763 24.39 559 564 131.2
C 0 207 1968 10.7 559 564 131.2
D 13 249 684742 5133.51 537 522 133.3
D 12 233 420507 3151.03 537 522 133.3
D 12 6 208267 1558.65 537 522 133.3

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