ASTROSAT CZTI

Data Quality Report

Orbit 20013

Creation date: 2024-06-27T18:10:04.619229
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/AS1A06_002T02_9000002982_20013cztM0_level2.evt modeM0/AS1A06_002T02_9000002982_20013cztM0_level2_quad_clean.evt
Size (bytes)319,233,60040,501,440
Size304.4 MB 38.6 MB
Events in quadrant A2,838,231231,391
Events in quadrant B1,929,159248,039
Events in quadrant C1,915,541234,950
Events in quadrant D2,712,670229,378

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0800
B0800
C0800
D0800

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0111280
B083560
C082860
D0107970

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A39942817.035553%
B3995300.750939%
C3995160.400501%
D3995491.226533%

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 3994 3994 220 220 5.51% 5.51%
B 3995 3995 17 17 0.43% 0.43%
C 3995 3995 0 0 0.00% 0.00%
D 3995 3995 39 39 0.98% 0.98%

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 14 238 1106842 12105.32 448 440 91.4
A 0 226 3889 37.74 448 440 91.4
A 13 254 3882 37.66 448 440 91.4
B 7 220 62241 693.07 455 443 89.2
B 15 32 36252 401.6 455 443 89.2
B 4 80 25062 276.11 455 443 89.2
C 3 233 71997 693.86 436 439 103.1
C 14 238 68501 659.96 436 439 103.1
C 9 221 60169 579.17 436 439 103.1
D 1 20 632783 5805.8 443 429 108.9
D 12 218 239537 2195.31 443 429 108.9
D 1 52 136864 1252.64 443 429 108.9

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