ASTROSAT CZTI

Data Quality Report

Orbit 25243

Creation date: 2024-06-27T19:15:25.570475
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/AS1A07_097T01_9000003692_25243cztM0_level2.evt modeM0/AS1A07_097T01_9000003692_25243cztM0_level2_quad_clean.evt
Size (bytes)553,717,44064,895,040
Size528.1 MB 61.9 MB
Events in quadrant A3,421,543399,692
Events in quadrant B3,442,442401,535
Events in quadrant C4,376,940376,014
Events in quadrant D5,119,419365,469

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138820
B0138300
C0171030
D0196110

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6039621.026660%
B6039721.192250%
C60393395.613512%
D60402964.900662%

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 7354 6040 0 0 0.00% 0.00%
B 7354 6040 0 0 0.00% 0.00%
C 7354 6040 185 185 2.52% 3.06%
D 7355 6041 145 145 1.97% 2.40%

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 6 16 21346 118.11 880 866 173.4
A 13 254 10086 53.17 880 866 173.4
A 0 226 7889 40.5 880 866 173.4
B 0 190 58998 360.32 859 842 161.4
B 12 111 18229 107.72 859 842 161.4
B 11 111 16431 96.59 859 842 161.4
C 0 239 568154 3022.67 814 820 187.7
C 2 16 301033 1599.49 814 820 187.7
C 7 247 190399 1010.05 814 820 187.7
D 8 195 756607 3759.23 838 814 201.0
D 10 70 480841 2387.6 838 814 201.0
D 1 52 282235 1399.76 838 814 201.0

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