ASTROSAT CZTI

Data Quality Report

Orbit 10764

Creation date: 2024-06-27T16:03:33.487778
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/AS1G07_051T01_9000001550_10764cztM0_level2.evt modeM0/AS1G07_051T01_9000001550_10764cztM0_level2_quad_clean.evt
Size (bytes)365,123,52047,620,800
Size348.2 MB 45.4 MB
Events in quadrant A1,923,321291,590
Events in quadrant B3,496,752291,144
Events in quadrant C1,843,145294,168
Events in quadrant D3,517,708277,957

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0840
B0840
C0840
D0840

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A083431
B0131961
C082931
D0130991

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4063280.689146%
B40634059.968004%
C4063280.689146%
D40633368.269751%

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 4958 4064 0 0 0.00% 0.00%
B 4958 4063 126 126 2.54% 3.10%
C 4958 4064 0 0 0.00% 0.00%
D 4958 4064 264 264 5.32% 6.50%

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 15 239 15974 151.93 488 476 102.0
A 1 162 12855 121.36 488 476 102.0
A 14 254 5459 48.85 488 476 102.0
B 0 85 1269991 13810.54 475 463 91.9
B 4 239 301092 3270.39 475 463 91.9
B 4 81 25525 272.64 475 463 91.9
C 13 61 3467 26.91 472 473 111.3
C 14 234 1950 13.28 472 473 111.3
C 12 4 1330 7.7 472 473 111.3
D 10 157 1391041 12362.09 460 446 112.5
D 1 52 239803 2127.83 460 446 112.5
D 8 195 59022 520.72 460 446 112.5

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