ASTROSAT CZTI

Data Quality Report

Orbit 16003

Creation date: 2024-06-27T17:16:39.842902
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/AS1T02_090T01_9000002364_16003cztM0_level2.evt modeM0/AS1T02_090T01_9000002364_16003cztM0_level2_quad_clean.evt
Size (bytes)208,604,16058,907,520
Size198.9 MB 56.2 MB
Events in quadrant A1,534,412401,990
Events in quadrant B1,575,317404,316
Events in quadrant C1,508,449389,607
Events in quadrant D1,501,114381,716

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A062052
B062691
C060561
D061791

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0580
B0580
C0580
D0580

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2894772.660677%
B2894933.213545%
C2894742.557015%
D2894692.384243%

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 3750 2895 3 3 0.08% 0.10%
B 3750 2895 22 22 0.59% 0.76%
C 3750 2895 0 0 0.00% 0.00%
D 3749 2894 9 9 0.24% 0.31%

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 10 253 63795 794.59 381 373 79.8
A 0 226 3430 38.3 381 373 79.8
A 12 194 2859 31.15 381 373 79.8
B 5 65 64566 848.64 379 369 75.6
B 0 245 9395 119.32 379 369 75.6
B 12 111 8396 106.11 379 369 75.6
C 14 238 55743 633.05 364 367 87.5
C 3 233 30334 342.58 364 367 87.5
C 13 61 2624 25.8 364 367 87.5
D 12 218 29137 309.85 370 359 92.9
D 7 223 28211 299.88 370 359 92.9
D 13 249 13846 145.21 370 359 92.9

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