ASTROSAT CZTI

Data Quality Report

Orbit 42289

Creation date: 2024-06-27T22:38:45.514479
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_089T08_9000005790_42289cztM0_level2.fits modeM0/AS1A12_089T08_9000005790_42289cztM0_level2_quad_clean.evt
Size (bytes)307,261,44085,973,760
Size293.0 MB 82.0 MB
Events in quadrant A2,820,989577,896
Events in quadrant B2,377,475595,154
Events in quadrant C2,380,744561,079
Events in quadrant D3,386,251502,525

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0115882
B0107702
C0105742
D0138422

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0240
C0240
D0240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5236350.668449%
B5236100.190985%
C523620.038197%
D52362174.144385%

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 7060 5237 18 18 0.25% 0.34%
B 7060 5237 3 3 0.04% 0.06%
C 7060 5237 0 0 0.00% 0.00%
D 7060 5237 208 208 2.95% 3.97%

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 553146 4781.14 562 551 115.6
A 7 3 71703 615.62 562 551 115.6
A 15 223 10170 83.23 562 551 115.6
B 4 171 94979 856.39 565 549 110.3
B 5 255 34399 306.99 565 549 110.3
B 15 35 19709 173.76 565 549 110.3
C 15 214 218744 1689.38 547 551 129.2
C 15 159 19688 148.17 547 551 129.2
C 15 111 5438 37.84 547 551 129.2
D 12 233 352825 2674.21 537 524 131.7
D 1 52 291556 2209.14 537 524 131.7
D 2 249 262932 1991.86 537 524 131.7

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