ASTROSAT CZTI

Data Quality Report

Orbit 29098

Creation date: 2024-06-27T20:00:10.464901
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/AS1A10_063T01_9000004182_29098cztM0_level2.evt modeM0/AS1A10_063T01_9000004182_29098cztM0_level2_quad_clean.evt
Size (bytes)629,104,320103,423,680
Size600.0 MB 98.6 MB
Events in quadrant A3,791,928660,161
Events in quadrant B3,916,068677,861
Events in quadrant C3,940,805649,414
Events in quadrant D6,895,826622,949

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160172
B0165102
C0166332
D0256572

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7503700.932960%
B75041652.198827%
C75041872.492004%
D750481110.807569%

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 8913 7505 0 0 0.00% 0.00%
B 8914 7506 11 11 0.12% 0.15%
C 8913 7505 9 9 0.10% 0.12%
D 8914 7506 355 355 3.98% 4.73%

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 98581 507.69 952 934 192.3
A 13 254 13172 63.63 952 934 192.3
A 3 137 9498 44.53 952 934 192.3
B 10 245 100181 545.74 949 924 181.9
B 0 190 50520 272.69 949 924 181.9
B 12 111 22753 120.02 949 924 181.9
C 14 238 145821 673.11 916 924 215.3
C 3 233 133614 616.4 916 924 215.3
C 9 54 64309 294.45 916 924 215.3
D 8 195 2569922 12022.15 894 871 213.7
D 1 52 754592 3527.12 894 871 213.7
D 2 250 76840 355.51 894 871 213.7

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