ASTROSAT CZTI

Data Quality Report

Orbit 30204

Creation date: 2024-06-27T20:12:12.631547
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/AS1A10_071T15_9000004346_30204cztM0_level2.evt modeM0/AS1A10_071T15_9000004346_30204cztM0_level2_quad_clean.evt
Size (bytes)505,330,56091,604,160
Size481.9 MB 87.4 MB
Events in quadrant A3,087,862592,067
Events in quadrant B4,810,699592,482
Events in quadrant C3,154,861572,856
Events in quadrant D3,810,939564,523

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134041
B0194662
C0134971
D0154191

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6482390.601666%
B6482841.295896%
C6482851.311324%
D6482721.110768%

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 7447 6483 1 1 0.01% 0.02%
B 7447 6483 0 0 0.00% 0.00%
C 7447 6482 0 0 0.00% 0.00%
D 7447 6483 38 38 0.51% 0.59%

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 8 192 12124 69.9 794 776 162.4
A 13 254 11714 67.37 794 776 162.4
A 3 137 8258 46.08 794 776 162.4
B 6 159 1734554 11456.63 782 761 151.3
B 12 111 19102 121.19 782 761 151.3
B 11 111 17648 111.59 782 761 151.3
C 14 238 122571 676.36 765 770 180.1
C 10 22 23632 126.95 765 770 180.1
C 2 114 14797 77.89 765 770 180.1
D 7 223 293195 1524.45 768 749 191.8
D 8 195 266107 1383.25 768 749 191.8
D 13 104 158771 823.73 768 749 191.8

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