ASTROSAT CZTI

Data Quality Report

Orbit 19536

Creation date: 2024-06-27T18:03:48.959329
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_101T05_9000002902_19536cztM0_level2.evt modeM0/AS1A05_101T05_9000002902_19536cztM0_level2_quad_clean.evt
Size (bytes)101,450,88031,178,880
Size96.8 MB 29.7 MB
Events in quadrant A720,294210,419
Events in quadrant B737,916212,683
Events in quadrant C793,198199,662
Events in quadrant D709,895203,836

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A05020
B05020
C05121
D04917

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A077
B074
C064
D064

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050161807
B050001784
C051611890
D050661811

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A158820.125945%
B158940.251731%
C157360.381437%
D160220.124844%

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 2158 1914 0 0 0.00% 0.00%
B 2175 1930 0 0 0.00% 0.00%
C 2177 1894 0 0 0.00% 0.00%
D 2169 1928 1 1 0.05% 0.05%

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 4 2 5108 125.21 185 181 39.3
A 13 254 2036 47.13 185 181 39.3
A 5 203 1723 39.18 185 181 39.3
B 12 111 4159 106.12 187 183 37.5
B 11 111 3834 97.44 187 183 37.5
B 14 111 3304 83.3 187 183 37.5
C 3 233 57978 1313.59 181 183 44.0
C 14 238 27584 622.78 181 183 44.0
C 13 61 1204 23.21 181 183 44.0
D 12 218 9449 202.56 183 177 45.8
D 2 234 5527 116.88 183 177 45.8
D 2 16 5022 105.85 183 177 45.8

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