ASTROSAT CZTI

Data Quality Report

Orbit 05950

Creation date: 2024-06-27T15:01:08.890487
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/AS1G06_157T01_9000000772_05950cztM0_level2.evt modeM0/AS1G06_157T01_9000000772_05950cztM0_level2_quad_clean.evt
Size (bytes)432,351,36088,948,800
Size412.3 MB 84.8 MB
Events in quadrant A3,722,337552,394
Events in quadrant B3,024,407580,600
Events in quadrant C2,880,383569,362
Events in quadrant D3,029,690543,070

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0154293
B0133432
C0130992
D0136942

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64261782.769997%
B6426240.373483%
C6426110.171180%
D6426120.186741%

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 7591 6427 108 108 1.42% 1.68%
B 7591 6427 5 5 0.07% 0.08%
C 7591 6427 0 0 0.00% 0.00%
D 7591 6427 3 3 0.04% 0.05%

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 4 2 669431 4522.97 727 712 147.8
A 13 251 212973 1435.65 727 712 147.8
A 8 192 20416 133.27 727 712 147.8
B 0 219 32915 226.44 752 735 142.1
B 15 255 28986 198.79 752 735 142.1
B 7 221 15041 100.67 752 735 142.1
C 9 54 16480 93.31 731 735 168.7
C 9 68 10190 56.03 731 735 168.7
C 13 61 5823 30.15 731 735 168.7
D 1 20 140311 795.05 721 698 175.6
D 2 63 118555 671.16 721 698 175.6
D 2 152 17408 95.16 721 698 175.6

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