ASTROSAT CZTI

Data Quality Report

Orbit 27504

Creation date: 2024-06-27T19:40:44.510573
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/AS1T03_249T01_9000003934_27504cztM0_level2.evt modeM0/AS1T03_249T01_9000003934_27504cztM0_level2_quad_clean.evt
Size (bytes)419,256,00081,535,680
Size399.8 MB 77.8 MB
Events in quadrant A2,966,119523,525
Events in quadrant B3,001,179532,338
Events in quadrant C2,981,509504,552
Events in quadrant D3,343,906493,020

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0123450
B0124720
C0124460
D0137370

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5945671.126997%
B5945711.194281%
C5946891.496805%
D59451111.867115%

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 7010 5945 0 0 0.00% 0.00%
B 7010 5945 0 0 0.00% 0.00%
C 7011 5946 0 0 0.00% 0.00%
D 7010 5945 54 54 0.77% 0.91%

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 13 254 9406 56.34 766 751 153.6
A 3 137 7115 41.43 766 751 153.6
A 0 226 6590 38.01 766 751 153.6
B 15 32 17732 117.53 755 737 144.6
B 12 111 17581 116.49 755 737 144.6
B 11 111 16150 106.59 755 737 144.6
C 14 238 117495 684.8 727 731 170.5
C 10 22 33098 189.83 727 731 170.5
C 13 61 5131 25.81 727 731 170.5
D 1 52 457397 2586.54 736 716 176.6
D 2 250 66019 369.86 736 716 176.6
D 2 234 22482 123.28 736 716 176.6

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