ASTROSAT CZTI

Data Quality Report

Orbit 22093

Creation date: 2024-06-27T18:36:36.953315
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_146T01_9000003272_22093cztM0_level2.evt modeM0/AS1T03_146T01_9000003272_22093cztM0_level2_quad_clean.evt
Size (bytes)573,808,32094,795,200
Size547.2 MB 90.4 MB
Events in quadrant A3,395,617620,365
Events in quadrant B3,908,186621,605
Events in quadrant C3,339,956595,731
Events in quadrant D6,265,625551,138

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B060
C060
D060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145502
B0160352
C0143292
D0234812

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6914660.954585%
B69141952.820364%
C6914741.070292%
D69145287.636679%

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 7364 6915 14 14 0.19% 0.20%
B 7364 6915 96 96 1.30% 1.39%
C 7364 6915 0 0 0.00% 0.00%
D 7364 6915 414 414 5.62% 5.99%

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 15 174 45419 254.23 864 847 175.3
A 13 254 12361 65.67 864 847 175.3
A 14 111 10467 54.87 864 847 175.3
B 3 64 404030 2446.81 857 836 164.8
B 0 190 76679 460.26 857 836 164.8
B 0 230 20755 120.88 857 836 164.8
C 14 238 128088 659.08 821 827 193.1
C 13 61 5940 26.48 821 827 193.1
C 0 239 4430 18.66 821 827 193.1
D 1 52 2735169 13894.9 806 782 196.8
D 2 16 122000 615.97 806 782 196.8
D 7 238 93035 468.79 806 782 196.8

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