ASTROSAT CZTI

Data Quality Report

Orbit 43333

Creation date: 2024-06-27T22:50:44.625916
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_158T01_9000005868_43333cztM0_level2.fits modeM0/AS1T05_158T01_9000005868_43333cztM0_level2_quad_clean.evt
Size (bytes)334,059,84095,863,680
Size318.6 MB 91.4 MB
Events in quadrant A3,118,495641,909
Events in quadrant B2,935,846652,351
Events in quadrant C2,810,652627,550
Events in quadrant D3,046,664573,215

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0126272
B0126062
C0118172
D0131952

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0340
B0340
C0340
D0340

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5830100.171527%
B5829751.286670%
C583060.102916%
D58301071.835334%

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 9266 5832 3 3 0.03% 0.05%
B 9265 5831 59 59 0.64% 1.01%
C 9266 5832 1 1 0.01% 0.02%
D 9266 5832 87 87 0.94% 1.49%

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 581318 4293.71 653 638 135.2
A 15 190 8601 58.88 653 638 135.2
A 3 137 7439 50.29 653 638 135.2
B 5 172 293927 2303.53 643 625 127.3
B 0 189 89719 699.72 643 625 127.3
B 0 245 22034 168.14 643 625 127.3
C 15 214 246143 1640.48 638 642 149.7
C 3 233 39375 258.82 638 642 149.7
C 15 159 20443 132.31 638 642 149.7
D 13 249 233168 1496.83 632 615 155.4
D 2 249 102342 654.76 632 615 155.4
D 12 6 93797 599.76 632 615 155.4

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