ASTROSAT CZTI

Data Quality Report

Orbit 42327

Creation date: 2024-06-27T22:39:01.256719
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/AS1C07_001T10_9000005796_42327cztM0_level2.fits modeM0/AS1C07_001T10_9000005796_42327cztM0_level2_quad_clean.evt
Size (bytes)349,873,92092,724,480
Size333.7 MB 88.4 MB
Events in quadrant A3,415,740633,468
Events in quadrant B2,693,407636,073
Events in quadrant C2,527,406610,863
Events in quadrant D3,893,177547,826

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136901
B0115941
C0109091
D0152261

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5414180.332471%
B5414320.591060%
C541320.036948%
D54142715.005541%

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 7267 5415 6 6 0.08% 0.11%
B 7267 5415 23 23 0.32% 0.42%
C 7266 5414 0 0 0.00% 0.00%
D 7267 5415 242 242 3.33% 4.47%

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 10 83 581040 4683.06 606 594 123.9
A 15 223 398041 3206.62 606 594 123.9
A 13 248 34231 271.38 606 594 123.9
B 5 172 128390 1134.16 594 579 112.7
B 0 229 58164 511.0 594 579 112.7
B 3 112 39780 347.86 594 579 112.7
C 15 214 229376 1698.01 584 589 134.7
C 12 249 16881 120.92 584 589 134.7
C 13 61 4007 25.37 584 589 134.7
D 2 249 543808 3866.76 580 564 140.5
D 1 52 523251 3720.44 580 564 140.5
D 10 199 198400 1408.18 580 564 140.5

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