ASTROSAT CZTI

Data Quality Report

Orbit 38117

Creation date: 2024-06-27T21:48:36.316900
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/AS1A11_065T21_9000005364_38117cztM0_level2.fits modeM0/AS1A11_065T21_9000005364_38117cztM0_level2_quad_clean.evt
Size (bytes)366,209,28089,349,120
Size349.2 MB 85.2 MB
Events in quadrant A2,729,533610,797
Events in quadrant B2,623,951610,125
Events in quadrant C2,491,633594,238
Events in quadrant D5,302,630522,691

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0113503
B0115502
C0106802
D0193572

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A524550.095329%
B52451112.116301%
C524540.076263%
D52453817.264061%

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 7188 5246 3 3 0.04% 0.06%
B 7188 5246 68 68 0.95% 1.30%
C 7188 5246 2 2 0.03% 0.04%
D 7188 5246 274 274 3.81% 5.22%

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 363588 3104.68 586 576 116.9
A 12 189 33736 283.6 586 576 116.9
A 12 16 26750 223.85 586 576 116.9
B 0 229 353935 3209.56 574 560 110.1
B 12 111 13675 119.12 574 560 110.1
B 11 111 12251 106.18 574 560 110.1
C 15 214 220216 1681.12 565 570 130.7
C 3 233 34790 261.91 565 570 130.7
C 0 10 13253 97.07 565 570 130.7
D 12 235 2895499 21247.7 557 541 136.2
D 13 249 82007 597.92 557 541 136.2
D 1 52 66440 483.67 557 541 136.2

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