ASTROSAT CZTI

Data Quality Report

Orbit 29452

Creation date: 2024-06-27T20:04:15.787333
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_094T02_9000004238_29452cztM0_level2.evt modeM0/AS1A10_094T02_9000004238_29452cztM0_level2_quad_clean.evt
Size (bytes)590,820,48077,506,560
Size563.5 MB 73.9 MB
Events in quadrant A2,237,216550,269
Events in quadrant B2,303,404565,398
Events in quadrant C2,452,742536,756
Events in quadrant D10,578,480360,892

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A096851
B098391
C0102081
D0346085

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0980
B0980
C0980
D0980

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4728170.359560%
B4728270.571066%
C4728761.607445%
D4727353374.740850%

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 5798 4729 0 0 0.00% 0.00%
B 5798 4729 0 0 0.00% 0.00%
C 5798 4729 0 0 0.00% 0.00%
D 5797 4727 3283 3283 56.63% 69.45%

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 8754 70.57 577 566 116.0
A 3 137 5470 42.27 577 566 116.0
A 0 226 4922 37.55 577 566 116.0
B 0 190 13975 122.04 578 564 109.9
B 12 111 13068 113.79 578 564 109.9
B 11 111 11835 102.57 578 564 109.9
C 3 233 127829 982.95 557 559 129.5
C 14 238 109965 844.98 557 559 129.5
C 14 254 23832 179.75 557 559 129.5
D 8 195 4898890 47887.12 426 413 102.3
D 12 33 2999455 29318.4 426 413 102.3
D 1 52 853624 8340.92 426 413 102.3

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