ASTROSAT CZTI

Data Quality Report

Orbit 13567

Creation date: 2024-06-27T16:42:47.743444
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/AS1G08_047T01_9000002002_13567cztM0_level2.evt modeM0/AS1G08_047T01_9000002002_13567cztM0_level2_quad_clean.evt
Size (bytes)114,382,08026,853,120
Size109.1 MB 25.6 MB
Events in quadrant A697,469178,287
Events in quadrant B841,911178,944
Events in quadrant C690,285177,871
Events in quadrant D1,133,199169,836

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0280
D0280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030181
B034530
C030060
D044940

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A145330.206469%
B1453221.514109%
C145300.000000%
D1453130.894701%

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 1454 1454 0 0 0.00% 0.00%
B 1454 1454 17 17 1.17% 1.17%
C 1454 1454 0 0 0.00% 0.00%
D 1454 1454 15 15 1.03% 1.03%

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 1 162 12518 326.12 174 169 37.9
A 1 178 4470 113.58 174 169 37.9
A 1 161 4188 106.14 174 169 37.9
B 0 190 51731 1452.54 171 166 35.5
B 10 246 39814 1116.85 171 166 35.5
B 0 182 35104 984.17 171 166 35.5
C 3 233 52190 1302.23 163 164 40.0
C 13 61 1221 26.46 163 164 40.0
C -1 -1 -1 -1.0 163 164 40.0
D 8 195 218579 5089.14 165 160 42.9
D 5 222 195118 4542.5 165 160 42.9
D 1 20 43452 1008.7 165 160 42.9

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