ASTROSAT CZTI

Data Quality Report

Orbit 43123

Creation date: 2024-06-27T22:48:18.144624
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/AS1T05_154T01_9000005850_43123cztM0_level2.fits modeM0/AS1T05_154T01_9000005850_43123cztM0_level2_quad_clean.evt
Size (bytes)403,744,32086,929,920
Size385.0 MB 82.9 MB
Events in quadrant A5,815,179480,786
Events in quadrant B2,422,659619,865
Events in quadrant C2,545,891599,104
Events in quadrant D3,726,025541,189

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210092
B0113332
C0114292
D0150382

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0330
B0330
C0330
D0330

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5592121221.673820%
B5592100.178827%
C5593140.250313%
D55932003.575898%

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 8909 5594 976 976 10.96% 17.45%
B 8909 5594 3 3 0.03% 0.05%
C 8910 5595 10 10 0.11% 0.18%
D 8910 5595 127 127 1.43% 2.27%

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 2824095 26074.55 530 518 108.3
A 10 83 506444 4672.01 530 518 108.3
A 15 237 417581 3851.4 530 518 108.3
B 0 229 41308 357.2 584 566 114.1
B 0 189 31328 269.7 584 566 114.1
B 5 255 26580 228.07 584 566 114.1
C 15 214 233751 1730.61 572 575 134.7
C 3 233 41323 302.43 572 575 134.7
C 14 254 20433 147.38 572 575 134.7
D 1 52 1450687 10534.93 565 550 137.7
D 2 249 26389 187.71 565 550 137.7
D 2 234 25550 181.62 565 550 137.7

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