ASTROSAT CZTI

Data Quality Report

Orbit 47099

Creation date: 2024-10-15T18:00:25.401148
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/AS1C09_003T01_9000006298_47099cztM0_level2.fits modeM0/AS1C09_003T01_9000006298_47099cztM0_level2_quad_clean.evt
Size (bytes)398,744,64085,847,040
Size380.3 MB 81.9 MB
Events in quadrant A6,343,627525,992
Events in quadrant B3,009,181597,931
Events in quadrant C2,361,997573,088
Events in quadrant D2,634,765532,543

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240491160
B012821373
C011223236
D011927301

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01104
B01100
C01102
D01102

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A519967312.944797%
B52961572.964502%
C5311280.527208%
D5300531.000000%

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 7270 5358 409 409 5.63% 7.63%
B 7271 5407 43 43 0.59% 0.80%
C 7272 5421 5 5 0.07% 0.09%
D 7272 5413 21 21 0.29% 0.39%

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 10 83 2872309 24737.23 563 551 116.1
A 9 191 1165811 10037.51 563 551 116.1
A 7 3 96805 829.13 563 551 116.1
B 5 32 475772 4085.42 594 575 116.3
B 5 172 43845 372.01 594 575 116.3
B 0 200 35592 301.05 594 575 116.3
C 14 254 82791 606.09 579 580 135.6
C 1 3 8860 61.04 579 580 135.6
C 13 61 4042 25.52 579 580 135.6
D 1 47 89361 610.75 585 566 145.4
D 13 171 75786 517.37 585 566 145.4
D 8 48 36407 246.52 585 566 145.4

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