ASTROSAT CZTI

Data Quality Report

Orbit 48301

Creation date: 2024-09-06T11:20:31.076067
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_029T01_9000006422_48301cztM0_level2.fits modeM0/AS1A13_029T01_9000006422_48301cztM0_level2_quad_clean.evt
Size (bytes)544,224,960110,787,840
Size519.0 MB 105.7 MB
Events in quadrant A7,217,874755,342
Events in quadrant B3,703,179784,623
Events in quadrant C3,165,630751,735
Events in quadrant D5,554,694609,455

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0267281
B0150191
C0137421
D0206101

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65042764.243542%
B65041432.198647%
C6504761.168512%
D650487513.453260%

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 7699 6505 97 97 1.26% 1.49%
B 7699 6505 50 50 0.65% 0.77%
C 7699 6505 32 32 0.42% 0.49%
D 7699 6505 739 739 9.60% 11.36%

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 4022946 25318.65 775 760 158.9
A 13 248 168016 1052.83 775 760 158.9
A 0 31 19088 115.37 775 760 158.9
B 4 21 293563 1944.77 772 751 150.6
B 7 221 154486 1021.06 772 751 150.6
B 0 200 65098 427.37 772 751 150.6
C 12 2 108772 604.76 761 767 178.6
C 14 254 67745 375.04 761 767 178.6
C 12 250 19584 105.36 761 767 178.6
D 2 165 1999825 11113.33 720 698 179.9
D 7 96 507836 2819.23 720 698 179.9
D 2 249 135248 747.98 720 698 179.9

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