ASTROSAT CZTI

Data Quality Report

Orbit 41343

Creation date: 2024-06-27T22:27:53.891660
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/AS1T05_105T01_9000005658_41343cztM0_level2.fits modeM0/AS1T05_105T01_9000005658_41343cztM0_level2_quad_clean.evt
Size (bytes)414,501,12088,810,560
Size395.3 MB 84.7 MB
Events in quadrant A2,841,482627,175
Events in quadrant B2,461,919650,309
Events in quadrant C3,059,396581,924
Events in quadrant D6,580,953470,018

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0390
B0390
C0390
D0390

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0115403
B0107242
C0121822
D0231182

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5139210.408640%
B5139170.330804%
C51392575.000973%
D5139108821.171434%

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 8994 5141 14 14 0.16% 0.27%
B 8994 5141 13 13 0.14% 0.25%
C 8994 5141 259 259 2.88% 5.04%
D 8994 5141 1168 1168 12.99% 22.72%

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 486526 4092.03 578 569 118.8
A 7 3 96222 805.45 578 569 118.8
A 2 79 15276 123.84 578 569 118.8
B 0 190 89920 799.79 580 565 111.7
B 5 255 80082 711.74 580 565 111.7
B 12 111 13763 118.13 580 565 111.7
C 0 10 688834 5377.35 547 552 128.0
C 15 214 213182 1661.22 547 552 128.0
C 2 16 9680 71.31 547 552 128.0
D 1 47 2055397 16528.24 508 495 124.3
D 1 52 1928447 15507.14 508 495 124.3
D 13 249 393119 3158.0 508 495 124.3

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