ASTROSAT CZTI

Data Quality Report

Orbit 47739

Creation date: 2024-07-26T19:58:50.928995
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_213T01_9000006344_47739cztM0_level2.fits modeM0/AS1T05_213T01_9000006344_47739cztM0_level2_quad_clean.evt
Size (bytes)471,332,160113,054,400
Size449.5 MB 107.8 MB
Events in quadrant A7,123,869732,890
Events in quadrant B3,479,335759,791
Events in quadrant C3,020,263752,414
Events in quadrant D3,275,051685,915

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0267371
B0152531
C0144241
D0149931

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70663004.245684%
B70661361.924710%
C7065490.693560%
D7065981.387120%

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 7606 7067 16 16 0.21% 0.23%
B 7606 7067 8 8 0.11% 0.11%
C 7605 7066 2 2 0.03% 0.03%
D 7605 7066 27 27 0.36% 0.38%

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 3964896 24839.58 766 749 159.6
A 9 191 92821 576.93 766 749 159.6
A 13 248 72911 452.17 766 749 159.6
B 0 200 390304 2613.27 763 739 149.1
B 5 255 20883 135.13 763 739 149.1
B 12 111 19429 125.38 763 739 149.1
C 14 254 36859 201.64 759 762 179.0
C 12 2 12198 63.88 759 762 179.0
C 0 207 9280 47.58 759 762 179.0
D 2 165 165965 865.53 763 735 190.9
D 10 181 51056 263.6 763 735 190.9
D 2 234 35724 183.29 763 735 190.9

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