ASTROSAT CZTI

Data Quality Report

Orbit 29502

Creation date: 2024-06-27T20:04:46.402622
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_048T05_9000004250_29502cztM0_level2.evt modeM0/AS1A10_048T05_9000004250_29502cztM0_level2_quad_clean.evt
Size (bytes)131,523,84024,307,200
Size125.4 MB 23.2 MB
Events in quadrant A677,107162,194
Events in quadrant B687,741167,590
Events in quadrant C711,721162,998
Events in quadrant D1,816,520145,947

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A027281
B027651
C028151
D063004

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1290251.937984%
B1290251.937984%
C1290312.403101%
D12891209.309542%

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 1290 1290 0 0 0.00% 0.00%
B 1290 1290 0 0 0.00% 0.00%
C 1290 1290 1 1 0.08% 0.08%
D 1289 1289 120 120 9.31% 9.31%

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 14 254 3300 83.74 174 171 37.4
A 13 254 2205 54.43 174 171 37.4
A 3 137 1554 37.01 174 171 37.4
B 0 190 11179 307.52 171 167 35.8
B 12 111 3825 102.15 171 167 35.8
B 11 111 3515 93.5 171 167 35.8
C 14 238 27245 658.1 169 171 41.1
C 3 233 20537 495.05 169 171 41.1
C 2 114 3189 73.36 169 171 41.1
D 8 195 887121 21374.17 166 161 41.5
D 7 238 251280 6051.52 166 161 41.5
D 13 153 22962 549.46 166 161 41.5

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