ASTROSAT CZTI

Data Quality Report

Orbit 46722

Creation date: 2024-06-27T23:26:50.597933
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/AS1A13_092T09_9000006258_46722cztM0_level2.fits modeM0/AS1A13_092T09_9000006258_46722cztM0_level2_quad_clean.evt
Size (bytes)465,943,680105,955,200
Size444.4 MB 101.0 MB
Events in quadrant A6,433,694690,179
Events in quadrant B3,420,323727,280
Events in quadrant C3,028,881704,446
Events in quadrant D3,862,724634,910

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0232912
B0147042
C0136962
D0161812

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0180
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64682954.560915%
B64681422.195424%
C6468651.004947%
D64681752.705628%

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 7583 6469 133 133 1.75% 2.06%
B 7583 6469 25 25 0.33% 0.39%
C 7583 6469 30 30 0.40% 0.46%
D 7583 6469 156 156 2.06% 2.41%

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 3429407 23111.57 711 694 148.4
A 13 248 112733 755.21 711 694 148.4
A 9 191 103569 693.44 711 694 148.4
B 4 171 384325 2713.66 724 700 141.4
B 3 112 91227 640.36 724 700 141.4
B 0 198 20612 140.85 724 700 141.4
C 1 3 66324 390.68 710 714 167.9
C 9 54 53389 313.66 710 714 167.9
C 12 2 48481 284.43 710 714 167.9
D 7 96 414268 2327.41 699 679 177.7
D 13 249 341628 1918.64 699 679 177.7
D 1 52 112314 628.21 699 679 177.7

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