ASTROSAT CZTI

Data Quality Report

Orbit 10366

Creation date: 2024-06-27T15:58:26.665147
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/AS1G07_048T01_9000001494_10366cztM0_level2.evt modeM0/AS1G07_048T01_9000001494_10366cztM0_level2_quad_clean.evt
Size (bytes)555,557,76091,532,160
Size529.8 MB 87.3 MB
Events in quadrant A3,373,051586,173
Events in quadrant B3,737,117586,509
Events in quadrant C3,267,953570,359
Events in quadrant D5,965,798534,694

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145813
B0155552
C0145944
D0227145

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70961552.184329%
B70962102.959414%
C70951131.592671%
D70952122.988020%

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 7801 7096 0 0 0.00% 0.00%
B 7801 7096 33 33 0.42% 0.47%
C 7801 7096 3 3 0.04% 0.04%
D 7801 7096 99 99 1.27% 1.40%

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 8 15 49402 278.3 862 845 174.5
A 0 226 7970 40.84 862 845 174.5
A 12 194 7194 36.39 862 845 174.5
B 0 214 184782 1130.84 856 836 162.7
B 4 239 88507 538.97 856 836 162.7
B 11 51 75173 457.0 856 836 162.7
C 14 234 27108 137.01 830 834 191.8
C 13 61 6201 27.99 830 834 191.8
C 12 4 2542 8.91 830 834 191.8
D 1 20 1672805 8570.31 822 800 195.1
D 5 222 815908 4178.06 822 800 195.1
D 1 52 135261 689.22 822 800 195.1

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