ASTROSAT CZTI

Data Quality Report

Orbit 09383

Creation date: 2024-06-27T15:45:19.960943
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/AS1A03_057T01_9000001330_09383cztM0_level2.evt modeM0/AS1A03_057T01_9000001330_09383cztM0_level2_quad_clean.evt
Size (bytes)880,323,840175,322,880
Size839.5 MB 167.2 MB
Events in quadrant A7,339,1041,119,625
Events in quadrant B6,005,3661,131,971
Events in quadrant C5,517,1711,104,037
Events in quadrant D6,931,2671,068,234

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0304113
B0267742
C0259182
D0299112

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02620
B02620
C02620
D02620

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A128151130.881779%
B12815900.702302%
C12815390.304331%
D128151341.045650%

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 13831 12817 9 9 0.07% 0.07%
B 13831 12817 9 9 0.07% 0.07%
C 13831 12817 0 0 0.00% 0.00%
D 13831 12817 74 74 0.54% 0.58%

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 8 5 936659 3165.36 1449 1418 295.5
A 1 162 340718 1148.38 1449 1418 295.5
A 1 178 141572 474.36 1449 1418 295.5
B 0 214 146006 523.07 1465 1426 276.4
B 0 219 54409 191.68 1465 1426 276.4
B 0 197 48358 169.79 1465 1426 276.4
C 13 61 10610 28.11 1409 1412 327.2
C 5 128 9354 24.27 1409 1412 327.2
C 14 67 5440 12.31 1409 1412 327.2
D 1 52 531596 1469.45 1391 1356 360.8
D 12 233 487570 1347.44 1391 1356 360.8
D 8 195 178866 491.93 1391 1356 360.8

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