ASTROSAT CZTI

Data Quality Report

Orbit 06084

Creation date: 2024-06-27T15:02:32.626291
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/AS1A02_028T03_9000000788_06084cztM0_level2.evt modeM0/AS1A02_028T03_9000000788_06084cztM0_level2_quad_clean.evt
Size (bytes)871,202,880151,945,920
Size830.8 MB 144.9 MB
Events in quadrant A6,200,372933,131
Events in quadrant B7,222,638926,644
Events in quadrant C5,971,129940,563
Events in quadrant D6,107,601900,760

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02734410
B03053315
C02722619
D02789515

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02640
B02640
C02640
D02640

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A130252171.666027%
B130236204.760808%
C130201441.105991%
D130221180.906159%

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 13203 13031 15 15 0.11% 0.12%
B 13203 13031 224 224 1.70% 1.72%
C 13203 13031 43 43 0.33% 0.33%
D 13203 13031 39 39 0.30% 0.30%

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 0 31 235065 755.08 1506 1469 309.4
A 8 15 63363 200.07 1506 1469 309.4
A 4 2 54182 170.39 1506 1469 309.4
B 3 64 1141346 3926.77 1503 1461 290.3
B 4 81 77277 261.18 1503 1461 290.3
B 0 219 75872 256.34 1503 1461 290.3
C 9 54 164933 480.2 1473 1480 340.4
C 1 16 36148 101.85 1473 1480 340.4
C 13 61 11857 30.49 1473 1480 340.4
D 5 239 174917 480.16 1467 1418 361.3
D 5 190 132612 363.08 1467 1418 361.3
D 13 169 59012 159.39 1467 1418 361.3

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