ASTROSAT CZTI

Data Quality Report

Orbit 33499

Creation date: 2024-06-27T20:49:30.840614
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_060T01_9000004804_33499cztM0_level2.evt modeM0/AS1A11_060T01_9000004804_33499cztM0_level2_quad_clean.evt
Size (bytes)443,180,16058,694,400
Size422.6 MB 56.0 MB
Events in quadrant A2,482,903353,211
Events in quadrant B3,341,203351,667
Events in quadrant C3,155,379354,342
Events in quadrant D4,074,652338,593

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0290
B0290
C0290
D0300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0108822
B0133181
C0123761
D0158121

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A542460.110619%
B54241663.060472%
C5424901.659292%
D54241011.862094%

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 7098 5425 0 0 0.00% 0.00%
B 7098 5425 109 109 1.54% 2.01%
C 7098 5425 72 72 1.01% 1.33%
D 7098 5425 89 89 1.25% 1.64%

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 13 254 8228 59.06 641 630 128.7
A 3 137 6469 45.39 641 630 128.7
A 10 83 5715 39.52 641 630 128.7
B 5 172 600164 4905.35 635 618 122.2
B 5 255 207561 1693.16 635 618 122.2
B 4 170 16871 132.98 635 618 122.2
C 0 10 245693 1688.53 627 633 145.1
C 15 214 232612 1598.4 627 633 145.1
C 4 254 83810 573.11 627 633 145.1
D 8 195 1053644 6910.09 622 605 152.4
D 2 250 312730 2048.18 622 605 152.4
D 2 249 83856 546.29 622 605 152.4

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