ASTROSAT CZTI

Data Quality Report

Orbit 06597

Creation date: 2024-06-27T15:09:12.192998
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/AS1G06_028T01_9000000890_06597cztM0_level2.evt modeM0/AS1G06_028T01_9000000890_06597cztM0_level2_quad_clean.evt
Size (bytes)430,168,32084,424,320
Size410.2 MB 80.5 MB
Events in quadrant A2,960,395534,445
Events in quadrant B3,088,970543,307
Events in quadrant C2,948,439534,569
Events in quadrant D3,601,182504,244

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129281
B0132730
C0129160
D0148420

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6305220.348929%
B6305300.475813%
C6305240.380650%
D6305550.872324%

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 7445 6306 0 0 0.00% 0.00%
B 7445 6306 3 3 0.04% 0.05%
C 7445 6306 1 1 0.01% 0.02%
D 7445 6306 12 12 0.16% 0.19%

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 8 15 17123 103.8 764 747 157.8
A 0 226 7273 41.36 764 747 157.8
A 12 194 7099 40.26 764 747 157.8
B 0 219 37657 251.94 770 754 146.5
B 4 81 25877 171.52 770 754 146.5
B 4 170 15053 97.62 770 754 146.5
C 9 54 5908 29.38 752 760 175.2
C 13 61 5733 28.39 752 760 175.2
C 9 16 4609 21.97 752 760 175.2
D 8 195 442818 2406.28 749 730 183.7
D 2 33 111575 603.33 749 730 183.7
D 11 241 50952 273.36 749 730 183.7

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