ASTROSAT CZTI

Data Quality Report

Orbit 27106

Creation date: 2024-06-27T19:36:33.630151
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/AS1T03_231T01_9000003910_27106cztM0_level2.evt modeM0/AS1T03_231T01_9000003910_27106cztM0_level2_quad_clean.evt
Size (bytes)548,588,16094,973,760
Size523.2 MB 90.6 MB
Events in quadrant A3,251,459643,557
Events in quadrant B3,879,437619,060
Events in quadrant C3,044,426615,928
Events in quadrant D6,015,960561,933

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136210
B0154370
C0129650
D0220710

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6238701.122155%
B62393715.946466%
C6239691.105946%
D623979312.710370%

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 7173 6239 6 6 0.08% 0.10%
B 7174 6240 304 304 4.24% 4.87%
C 7174 6240 1 1 0.01% 0.02%
D 7174 6240 793 793 11.05% 12.71%

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 14 235 190630 1191.55 786 770 159.3
A 12 189 22630 137.19 786 770 159.3
A 13 254 9265 53.31 786 770 159.3
B 0 189 811004 5596.54 751 732 144.8
B 3 112 78843 539.51 751 732 144.8
B 12 111 17524 115.98 751 732 144.8
C 14 238 118554 666.71 747 751 176.7
C 15 208 14807 79.55 747 751 176.7
C 13 61 5011 24.11 747 751 176.7
D 1 52 2838561 16109.43 730 712 176.2
D 7 38 248977 1409.31 730 712 176.2
D 2 250 150313 849.23 730 712 176.2

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