ASTROSAT CZTI

Data Quality Report

Orbit 09897

Creation date: 2024-06-27T15:52:02.860498
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/AS1G07_046T01_9000001408_09897cztM0_level2.evt modeM0/AS1G07_046T01_9000001408_09897cztM0_level2_quad_clean.evt
Size (bytes)440,962,56088,706,880
Size420.5 MB 84.6 MB
Events in quadrant A3,101,576560,918
Events in quadrant B2,927,797589,592
Events in quadrant C2,809,405581,536
Events in quadrant D4,103,916531,135

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132882
B0127491
C0125041
D0159911

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60531562.577234%
B6053430.710392%
C6053230.379977%
D60533786.244837%

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 7183 6054 58 58 0.81% 0.96%
B 7183 6054 4 4 0.06% 0.07%
C 7183 6054 0 0 0.00% 0.00%
D 7183 6054 351 351 4.89% 5.80%

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 14 111 248275 1713.07 715 701 144.5
A 8 15 89878 617.05 715 701 144.5
A 15 239 11779 76.65 715 701 144.5
B 4 81 57843 408.64 730 713 139.8
B 12 111 16129 110.27 730 713 139.8
B 11 111 13626 92.37 730 713 139.8
C 13 61 5172 26.61 718 724 167.1
C 10 22 4049 19.89 718 724 167.1
C 14 67 2612 11.3 718 724 167.1
D 1 52 976869 5370.07 695 681 181.8
D 8 195 275202 1510.16 695 681 181.8
D 8 32 58441 317.74 695 681 181.8

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