ASTROSAT CZTI

Data Quality Report

Orbit 03616

Creation date: 2024-06-27T14:31:38.772853
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/AS1G05_234T02_9000000474_03616cztM0_level2.evt modeM0/AS1G05_234T02_9000000474_03616cztM0_level2_quad_clean.evt
Size (bytes)552,957,12075,147,840
Size527.3 MB 71.7 MB
Events in quadrant A3,103,285478,536
Events in quadrant B3,931,139476,325
Events in quadrant C6,297,497408,470
Events in quadrant D2,974,764459,445

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136393
B0157192
C0230512
D0135652

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64871111.711115%
B64871041.603206%
C6487118918.328966%
D6487881.356559%

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 7612 6488 0 0 0.00% 0.00%
B 7612 6488 3 3 0.04% 0.05%
C 7612 6487 959 959 12.60% 14.78%
D 7612 6488 9 9 0.12% 0.14%

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 0 128 30648 187.63 778 761 159.3
A 0 50 22814 138.45 778 761 159.3
A 14 191 18118 108.97 778 761 159.3
B 15 204 578883 3864.85 782 762 149.6
B 3 0 235359 1568.32 782 762 149.6
B 0 182 24321 157.49 782 762 149.6
C 2 53 3403296 21253.73 692 694 160.1
C 9 247 89307 553.5 692 694 160.1
C 7 223 59416 366.8 692 694 160.1
D 13 223 62143 342.39 749 726 179.4
D 7 223 36864 201.46 749 726 179.4
D 2 14 14352 75.96 749 726 179.4

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
Veto Counter