ASTROSAT CZTI

Data Quality Report

Orbit 33106

Creation date: 2024-06-27T20:44:55.226957
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/AS1A11_008T06_9000004762_33106cztM0_level2.evt modeM0/AS1A11_008T06_9000004762_33106cztM0_level2_quad_clean.evt
Size (bytes)610,300,80072,089,280
Size582.0 MB 68.7 MB
Events in quadrant A2,387,430514,344
Events in quadrant B3,344,381491,888
Events in quadrant C5,311,121436,482
Events in quadrant D7,109,281395,723

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0290
B0290
C0290
D0300

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A099843
B0130272
C0190162
D0245262

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A488550.102354%
B48852915.957011%
C4885116423.828045%
D4885136828.004094%

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 7038 4886 0 0 0.00% 0.00%
B 7038 4886 196 196 2.78% 4.01%
C 7038 4886 838 838 11.91% 17.15%
D 7038 4886 1348 1348 19.15% 27.59%

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 15 47 27384 221.6 605 594 120.9
A 15 169 12829 101.21 605 594 120.9
A 13 254 9034 69.81 605 594 120.9
B 5 172 809046 7331.73 587 574 110.3
B 0 189 66149 594.68 587 574 110.3
B 5 200 46630 417.66 587 574 110.3
C 8 111 2631107 21487.77 534 540 122.4
C 7 221 281859 2297.95 534 540 122.4
C 0 10 171360 1395.34 534 540 122.4
D 7 223 2785780 20092.88 527 516 138.6
D 8 195 761754 5491.57 527 516 138.6
D 2 249 592993 4274.13 527 516 138.6

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