ASTROSAT CZTI

Data Quality Report

Orbit 44896

Creation date: 2024-06-27T23:07:45.780176
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_017T02_9000006032_44896cztM0_level2.fits modeM0/AS1A13_017T02_9000006032_44896cztM0_level2_quad_clean.evt
Size (bytes)650,603,520108,780,480
Size620.5 MB 103.7 MB
Events in quadrant A5,812,911760,202
Events in quadrant B3,748,302792,954
Events in quadrant C3,312,640773,255
Events in quadrant D10,695,584504,504

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220672
B0155602
C0142532
D0363682

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66353385.094197%
B66352183.285607%
C66351031.552374%
D6634229334.564365%

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 7695 6636 41 41 0.53% 0.62%
B 7695 6636 47 47 0.61% 0.71%
C 7695 6636 6 6 0.08% 0.09%
D 7694 6635 1974 1974 25.66% 29.75%

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 2512076 14972.18 808 792 167.7
A 10 248 48216 282.74 808 792 167.7
A 7 3 42991 251.59 808 792 167.7
B 5 255 255373 1587.24 811 788 160.4
B 0 168 70088 432.06 811 788 160.4
B 0 183 55898 343.59 811 788 160.4
C 12 2 63049 328.93 808 817 189.2
C 9 54 45707 237.27 808 817 189.2
C 3 233 14015 69.76 808 817 189.2
D 13 187 3848445 21769.76 701 681 176.7
D 1 52 1243568 7031.97 701 681 176.7
D 2 249 1139782 6444.77 701 681 176.7

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