ASTROSAT CZTI

Data Quality Report

Orbit 44748

Creation date: 2024-06-27T23:06:02.287702
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_004T11_9000006018_44748cztM0_level2.fits modeM0/AS1A13_004T11_9000006018_44748cztM0_level2_quad_clean.evt
Size (bytes)627,180,48098,127,360
Size598.1 MB 93.6 MB
Events in quadrant A5,637,644709,276
Events in quadrant B3,918,594740,110
Events in quadrant C3,091,694725,818
Events in quadrant D10,078,054355,182

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0217582
B0157992
C0135212
D0343152

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63173335.271490%
B63172223.514326%
C6317490.775685%
D6317298247.205952%

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 7502 6318 158 158 2.11% 2.50%
B 7502 6318 121 121 1.61% 1.92%
C 7502 6318 17 17 0.23% 0.27%
D 7502 6318 2530 2530 33.72% 40.04%

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 2037780 14011.34 707 692 145.4
A 15 223 654756 4498.73 707 692 145.4
A 13 248 210858 1445.54 707 692 145.4
B 0 189 519053 3711.66 716 694 139.7
B 5 255 146929 1047.1 716 694 139.7
B 5 172 144224 1027.73 716 694 139.7
C 14 254 180988 1073.42 719 722 167.9
C 12 2 39216 229.22 719 722 167.9
C 1 3 25744 149.0 719 722 167.9
D 8 129 4465322 36268.89 484 468 123.1
D 1 52 2521188 20476.31 484 468 123.1
D 1 47 513630 4168.52 484 468 123.1

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