ASTROSAT CZTI

Data Quality Report

Orbit 44087

Creation date: 2024-06-27T22:59:14.399004
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_012T01_9000005942_44087cztM0_level2.fits modeM0/AS1A13_012T01_9000005942_44087cztM0_level2_quad_clean.evt
Size (bytes)556,007,040121,507,200
Size530.2 MB 115.9 MB
Events in quadrant A4,963,269833,737
Events in quadrant B3,484,541863,591
Events in quadrant C3,460,487810,211
Events in quadrant D8,076,156636,347

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0199601
B0158401
C01591612
D02933333

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7696390.506757%
B7697170.220865%
C7691100.130022%
D7689129316.816231%

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 7697 7697 22 22 0.29% 0.29%
B 7698 7698 1 1 0.01% 0.01%
C 7698 7694 2 2 0.03% 0.03%
D 7696 7693 1044 1044 13.57% 13.57%

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 1143794 6252.69 873 854 182.8
A 15 222 207962 1133.03 873 854 182.8
A 7 3 193484 1053.82 873 854 182.8
B 12 111 22801 125.69 874 848 174.7
B 14 111 21115 116.04 874 848 174.7
B 11 111 21018 115.48 874 848 174.7
C 14 254 44906 214.17 864 868 205.6
C 14 96 17525 81.01 864 868 205.6
C 3 233 16829 77.62 864 868 205.6
D 1 52 1852010 9186.37 795 770 201.5
D 13 249 1746031 8660.47 795 770 201.5
D 1 47 685628 3398.46 795 770 201.5

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