ASTROSAT CZTI

Data Quality Report

Orbit 46690

Creation date: 2024-06-27T23:26:30.483329
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_092T20_9000006254_46690cztM0_level2.fits modeM0/AS1A13_092T20_9000006254_46690cztM0_level2_quad_clean.evt
Size (bytes)500,627,520107,320,320
Size477.4 MB 102.3 MB
Events in quadrant A6,432,377700,569
Events in quadrant B3,859,140733,948
Events in quadrant C2,974,681721,628
Events in quadrant D4,762,264640,815

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0232792
B0159482
C0136042
D0187162

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64872734.208417%
B64871872.882688%
C6487310.477879%
D64873244.994605%

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 7602 6488 126 126 1.66% 1.94%
B 7602 6488 65 65 0.86% 1.00%
C 7602 6488 10 10 0.13% 0.15%
D 7602 6488 268 268 3.53% 4.13%

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 3600431 24191.31 714 698 148.8
A 9 191 21756 141.52 714 698 148.8
A 0 243 17286 111.48 714 698 148.8
B 4 171 587226 4175.32 718 697 140.5
B 0 198 121832 862.32 718 697 140.5
B 10 128 109310 773.18 718 697 140.5
C 12 2 82980 486.07 713 718 169.2
C 3 233 81083 474.86 713 718 169.2
C 14 254 20807 118.7 713 718 169.2
D 1 52 914492 5188.45 698 677 176.1
D 13 249 357883 2028.14 698 677 176.1
D 12 128 292235 1655.4 698 677 176.1

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