ASTROSAT CZTI

Data Quality Report

Orbit 27909

Creation date: 2024-06-27T19:45:52.074114
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_048T06_9000004030_27909cztM0_level2.evt modeM0/AS1A10_048T06_9000004030_27909cztM0_level2_quad_clean.evt
Size (bytes)522,313,92088,390,080
Size498.1 MB 84.3 MB
Events in quadrant A2,987,113605,660
Events in quadrant B3,355,345607,108
Events in quadrant C2,988,072565,122
Events in quadrant D6,084,694483,507

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0125350
B0134940
C0126590
D0222160

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5942881.480983%
B59431352.271580%
C59431232.069662%
D594397316.372203%

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 7107 5942 0 0 0.00% 0.00%
B 7108 5943 19 19 0.27% 0.32%
C 7108 5943 2 2 0.03% 0.03%
D 7108 5943 871 871 12.25% 14.66%

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 13 254 10706 64.33 771 758 154.6
A 3 137 7122 41.15 771 758 154.6
A 0 226 6601 37.78 771 758 154.6
B 10 245 212258 1465.38 762 745 144.3
B 0 229 68130 466.85 762 745 144.3
B 0 230 52915 361.44 762 745 144.3
C 14 238 120085 716.96 718 726 166.5
C 15 208 39110 230.56 718 726 166.5
C 3 233 29082 170.33 718 726 166.5
D 1 52 2751523 17337.38 667 650 158.7
D 8 195 591074 3721.15 667 650 158.7
D 2 250 165286 1037.62 667 650 158.7

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