ASTROSAT CZTI

Data Quality Report

Orbit 06725

Creation date: 2024-06-27T15:10:49.462313
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/AS1C02_003T01_9000000924_06725cztM0_level2.evt modeM0/AS1C02_003T01_9000000924_06725cztM0_level2_quad_clean.evt
Size (bytes)300,257,28060,995,520
Size286.3 MB 58.2 MB
Events in quadrant A2,219,714390,998
Events in quadrant B1,972,770397,940
Events in quadrant C1,927,122389,923
Events in quadrant D2,684,458369,652

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0860
B0860
C0860
D0860

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A094472
B087701
C087341
D0107901

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A42371303.068209%
B42371052.478169%
C4237912.147746%
D42372666.278027%

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 4647 4238 16 16 0.34% 0.38%
B 4647 4238 5 5 0.11% 0.12%
C 4647 4238 0 0 0.00% 0.00%
D 4647 4238 149 149 3.21% 3.52%

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 14 111 185807 1789.78 498 485 103.5
A 8 15 63253 606.19 498 485 103.5
A 13 251 54455 521.22 498 485 103.5
B 3 220 14849 143.99 503 490 99.7
B 12 111 10480 100.18 503 490 99.7
B 11 111 8153 76.85 503 490 99.7
C 9 247 8305 67.79 487 489 115.3
C 8 128 7256 58.69 487 489 115.3
C 13 61 3722 28.04 487 489 115.3
D 2 33 473809 3945.31 480 464 120.0
D 8 195 151356 1257.68 480 464 120.0
D 12 221 118484 983.69 480 464 120.0

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