ASTROSAT CZTI

Data Quality Report

Orbit 02965

Creation date: 2024-06-27T14:22:48.452038
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/AS1G05_238T04_9000000416_02965cztM0_level2.evt modeM0/AS1G05_238T04_9000000416_02965cztM0_level2_quad_clean.evt
Size (bytes)398,433,60055,713,600
Size380.0 MB 53.1 MB
Events in quadrant A2,440,915339,319
Events in quadrant B3,222,624332,160
Events in quadrant C2,860,149326,687
Events in quadrant D3,182,414317,376

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0107893
B0130152
C0119622
D0130532

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0400
B0400
C0400
D0410

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5299130.245329%
B52991402.642008%
C5299510.962446%
D52991522.868466%

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 7454 5300 1 1 0.01% 0.02%
B 7454 5300 122 122 1.64% 2.30%
C 7454 5300 48 48 0.64% 0.91%
D 7454 5300 117 117 1.57% 2.21%

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 43134 346.72 605 590 122.7
A 0 31 39510 317.18 605 590 122.7
A 0 50 8954 68.16 605 590 122.7
B 3 175 668026 5758.38 607 594 115.9
B 0 219 58677 501.12 607 594 115.9
B 14 50 42048 357.65 607 594 115.9
C 1 192 289759 2132.05 580 583 135.6
C 14 223 133326 978.69 580 583 135.6
C 6 80 63515 463.99 580 583 135.6
D 12 1 148081 1094.03 574 561 134.8
D 1 31 123279 910.1 574 561 134.8
D 1 239 107396 792.31 574 561 134.8

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