ASTROSAT CZTI

Data Quality Report

Orbit 04863

Creation date: 2024-06-27T14:48:06.737209
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/AS1G05_002T01_9000000616_04863cztM0_level2.evt modeM0/AS1G05_002T01_9000000616_04863cztM0_level2_quad_clean.evt
Size (bytes)364,095,36077,984,640
Size347.2 MB 74.4 MB
Events in quadrant A2,402,059501,486
Events in quadrant B2,515,239500,613
Events in quadrant C2,336,085506,192
Events in quadrant D3,409,858479,648

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0109741
B0111331
C0109381
D0140021

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5337651.217913%
B5337561.049279%
C5337490.918119%
D53372144.009743%

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 6412 5337 1 1 0.02% 0.02%
B 6412 5337 0 0 0.00% 0.00%
C 6412 5337 0 0 0.00% 0.00%
D 6412 5337 138 138 2.15% 2.59%

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 0 50 10921 81.87 618 605 126.0
A 12 194 6173 44.19 618 605 126.0
A 0 226 6086 43.5 618 605 126.0
B 4 80 36220 298.97 618 602 119.1
B 7 252 25235 206.76 618 602 119.1
B 15 54 21223 173.09 618 602 119.1
C 12 4 10123 69.21 595 597 137.6
C 13 61 4931 31.49 595 597 137.6
C 8 222 2836 16.27 595 597 137.6
D 1 31 529300 3649.67 590 573 144.9
D 2 136 240071 1653.19 590 573 144.9
D 2 234 149595 1028.66 590 573 144.9

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