ASTROSAT CZTI

Data Quality Report

Orbit 32147

Creation date: 2024-06-27T20:36:59.309727
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_32147cztM0_level2.evt modeM0/AS1T04_051T01_9000004686_32147cztM0_level2_quad_clean.evt
Size (bytes)72,374,40013,881,600
Size69.0 MB 13.2 MB
Events in quadrant A345,59398,288
Events in quadrant B711,06095,831
Events in quadrant C426,49490,607
Events in quadrant D667,26887,590

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B060
C060
D060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A014041
B025201
C016551
D023641

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A56610.176678%
B5667513.250883%
C566549.540636%
D566264.593640%

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 566 566 0 0 0.00% 0.00%
B 566 566 23 23 4.06% 4.06%
C 566 566 26 26 4.59% 4.59%
D 566 566 19 19 3.36% 3.36%

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 12 189 9812 504.14 86 84 19.3
A 13 6 2439 122.05 86 84 19.3
A 13 254 1223 59.03 86 84 19.3
B 6 159 173657 9693.08 84 82 17.9
B 10 245 122326 6826.56 84 82 17.9
B 5 172 57693 3217.21 84 82 17.9
C 0 10 101638 5078.41 77 77 20.0
C 14 238 14468 719.6 77 77 20.0
C 14 254 2623 127.31 77 77 20.0
D 8 195 298997 14319.92 79 76 20.9
D 12 233 21683 1035.09 79 76 20.9
D 14 52 18311 873.55 79 76 20.9

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