ASTROSAT CZTI

Data Quality Report

Orbit 32119

Creation date: 2024-06-27T20:36:40.669982
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/AS1T04_051T01_9000004686_32119cztM0_level2.evt modeM0/AS1T04_051T01_9000004686_32119cztM0_level2_quad_clean.evt
Size (bytes)644,353,92073,310,400
Size614.5 MB 69.9 MB
Events in quadrant A3,454,174465,397
Events in quadrant B7,011,231440,796
Events in quadrant C3,938,395448,956
Events in quadrant D4,681,982421,456

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0240
C0240
D0240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139502
B0250412
C0156152
D0180992

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6347450.708996%
B63476159.689617%
C63472554.017646%
D63473265.136285%

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 7657 6348 0 0 0.00% 0.00%
B 7657 6348 331 331 4.32% 5.21%
C 7657 6348 118 118 1.54% 1.86%
D 7657 6348 277 277 3.62% 4.36%

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 6 16231 88.43 890 875 173.6
A 13 254 12280 65.68 890 875 173.6
A 3 137 7999 41.03 890 875 173.6
B 6 159 1722525 10877.03 864 847 158.3
B 10 245 1671173 10552.6 864 847 158.3
B 5 172 79924 499.58 864 847 158.3
C 0 10 295503 1521.73 851 859 193.6
C 14 238 143938 738.95 851 859 193.6
C 15 208 116698 598.27 851 859 193.6
D 12 233 736529 3733.87 845 825 197.0
D 8 195 625454 3170.13 845 825 197.0
D 2 250 85896 431.75 845 825 197.0

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