ASTROSAT CZTI

Data Quality Report

Orbit 41029

Creation date: 2024-06-27T22:23:28.348261
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/AS1A12_029T02_9000005590_41029cztM0_level2.fits modeM0/AS1A12_029T02_9000005590_41029cztM0_level2_quad_clean.evt
Size (bytes)337,550,40099,800,640
Size321.9 MB 95.2 MB
Events in quadrant A3,175,979661,075
Events in quadrant B2,812,490681,812
Events in quadrant C3,108,782656,387
Events in quadrant D2,930,593603,488

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131523
B0123822
C0130612
D0131992

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0350
B0350
C0350
D0350

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5996140.233489%
B5996160.266845%
C5996981.634423%
D5996801.334223%

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 9612 5999 4 4 0.04% 0.07%
B 9612 5999 1 1 0.01% 0.02%
C 9612 5999 56 56 0.58% 0.93%
D 9612 5999 82 82 0.85% 1.37%

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 83 520282 3896.47 652 639 133.4
A 12 189 124240 926.81 652 639 133.4
A 13 254 8477 58.77 652 639 133.4
B 0 229 124866 976.36 650 631 127.2
B 0 190 56063 435.64 650 631 127.2
B 0 245 52370 406.62 650 631 127.2
C 15 214 255510 1697.08 639 643 150.2
C 14 254 231682 1538.42 639 643 150.2
C 0 10 93915 621.07 639 643 150.2
D 13 249 184566 1177.65 636 618 156.2
D 13 171 183691 1172.05 636 618 156.2
D 2 153 47718 301.54 636 618 156.2

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