ASTROSAT CZTI

Data Quality Report

Orbit 06413

Creation date: 2024-06-27T15:06:53.756374
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_011T01_9000000850_06413cztM0_level2.evt modeM0/AS1C02_011T01_9000000850_06413cztM0_level2_quad_clean.evt
Size (bytes)446,469,12082,964,160
Size425.8 MB 79.1 MB
Events in quadrant A3,281,069518,025
Events in quadrant B3,375,819529,321
Events in quadrant C3,120,202519,808
Events in quadrant D3,307,812497,293

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136383
B0139462
C0134042
D0138932

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64191442.243340%
B64191542.399128%
C6419911.417666%
D64191091.698084%

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 7579 6420 3 3 0.04% 0.05%
B 7579 6420 3 3 0.04% 0.05%
C 7579 6420 0 0 0.00% 0.00%
D 7579 6420 3 3 0.04% 0.05%

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 15 174 80977 481.32 822 806 166.6
A 15 236 17953 102.95 822 806 166.6
A 8 15 10054 55.52 822 806 166.6
B 4 81 46926 289.12 829 812 159.5
B 0 229 43508 267.69 829 812 159.5
B 15 204 28184 171.61 829 812 159.5
C 13 61 6256 29.31 798 804 186.0
C 1 16 5131 23.26 798 804 186.0
C 8 222 2059 6.75 798 804 186.0
D 11 241 94572 478.74 799 775 195.9
D 2 152 61219 308.51 799 775 195.9
D 2 136 47096 236.42 799 775 195.9

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