ASTROSAT CZTI

Data Quality Report

Orbit 19195

Creation date: 2024-06-27T17:59:57.939921
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/AS1A05_046T01_9000002838_19195cztM0_level2.evt modeM0/AS1A05_046T01_9000002838_19195cztM0_level2_quad_clean.evt
Size (bytes)457,992,00099,313,920
Size436.8 MB 94.7 MB
Events in quadrant A3,122,471637,198
Events in quadrant B3,282,722663,605
Events in quadrant C3,424,526639,981
Events in quadrant D3,600,942615,524

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134502
B0138392
C0139982
D0150562

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0200
C0200
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6477370.571252%
B6477661.018990%
C6477971.497607%
D6477330.509495%

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 7502 6478 1 1 0.01% 0.02%
B 7502 6478 2 2 0.03% 0.03%
C 7502 6478 0 0 0.00% 0.00%
D 7502 6478 4 4 0.05% 0.06%

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 9098 50.82 808 790 163.5
A 0 226 7038 38.22 808 790 163.5
A 3 137 6286 33.62 808 790 163.5
B 0 189 31215 193.65 818 798 157.1
B 4 173 31050 192.6 818 798 157.1
B 12 111 18811 114.68 818 798 157.1
C 3 233 213045 1149.88 790 797 184.6
C 14 238 123510 664.81 790 797 184.6
C 0 207 7269 35.06 790 797 184.6
D 10 66 368173 1907.88 793 772 192.6
D 1 52 228289 1181.48 793 772 192.6
D 2 234 26217 132.13 793 772 192.6

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