ASTROSAT CZTI

Data Quality Report

Orbit 13197

Creation date: 2024-06-27T16:37:34.812088
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/AS1A04_104T04_9000001966_13197cztM0_level2.evt modeM0/AS1A04_104T04_9000001966_13197cztM0_level2_quad_clean.evt
Size (bytes)348,868,80052,580,160
Size332.7 MB 50.1 MB
Events in quadrant A1,866,194336,635
Events in quadrant B2,369,186341,736
Events in quadrant C1,842,157344,471
Events in quadrant D4,227,567298,838

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A081142
B096071
C080831
D0152311

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0780
B0780
C0780
D0780

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3822230.601779%
B38222095.468341%
C3822240.627943%
D382259415.541601%

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 4938 3824 0 0 0.00% 0.00%
B 4938 3824 95 95 1.92% 2.48%
C 4938 3824 1 1 0.02% 0.03%
D 4938 3824 425 425 8.61% 11.11%

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 11520 113.65 476 467 97.3
A 1 162 9365 91.5 476 467 97.3
A 12 189 5661 53.41 476 467 97.3
B 4 239 485727 5359.94 467 456 90.5
B 5 32 24526 265.86 467 456 90.5
B 0 189 11920 126.62 467 456 90.5
C 15 208 12502 110.59 468 472 108.8
C 13 61 3407 26.98 468 472 108.8
C 14 234 2848 21.84 468 472 108.8
D 13 122 2416790 22676.83 441 429 106.6
D 1 52 87405 816.24 441 429 106.6
D 2 234 18169 166.48 441 429 106.6

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