ASTROSAT CZTI

Data Quality Report

Orbit 33382

Creation date: 2024-06-27T20:48:13.322841
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/AS1A10_064T02_9000004788_33382cztM0_level2.evt modeM0/AS1A10_064T02_9000004788_33382cztM0_level2_quad_clean.evt
Size (bytes)498,502,08061,231,680
Size475.4 MB 58.4 MB
Events in quadrant A2,379,246387,497
Events in quadrant B3,460,724395,637
Events in quadrant C3,145,545380,836
Events in quadrant D5,772,516338,638

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0280
D0290

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100473
B0133062
C0121692
D0207392

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A500640.079904%
B50063126.232521%
C5006931.857771%
D500662112.405114%

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 7039 5007 0 0 0.00% 0.00%
B 7039 5007 240 240 3.41% 4.79%
C 7039 5007 82 82 1.16% 1.64%
D 7039 5007 563 563 8.00% 11.24%

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 13 254 7340 54.16 615 603 124.4
A 3 137 5609 40.24 615 603 124.4
A 0 226 5156 36.6 615 603 124.4
B 5 172 754252 6604.74 598 583 114.1
B 5 255 143089 1248.84 598 583 114.1
B 0 219 82385 716.87 598 583 114.1
C 15 208 272495 1993.25 592 597 136.4
C 15 214 216610 1583.56 592 597 136.4
C 0 10 191406 1398.8 592 597 136.4
D 8 195 1072882 7254.26 569 555 147.8
D 2 250 861150 5821.9 569 555 147.8
D 1 52 705729 4770.48 569 555 147.8

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