ASTROSAT CZTI

Data Quality Report

Orbit 36593

Creation date: 2024-06-27T21:28:52.977523
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/AS1A11_097T24_9000005224_36593cztM0_level2.evt modeM0/AS1A11_097T24_9000005224_36593cztM0_level2_quad_clean.evt
Size (bytes)482,958,72063,437,760
Size460.6 MB 60.5 MB
Events in quadrant A2,902,255406,340
Events in quadrant B2,812,379411,896
Events in quadrant C4,849,430364,214
Events in quadrant D3,698,328362,189

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0115703
B0113312
C0177902
D0143332

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270
B0270
C0270
D0280

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5374110.204689%
B5374150.279122%
C53743736.940826%
D53742274.224042%

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 7407 5375 1 1 0.01% 0.02%
B 7407 5375 6 6 0.08% 0.11%
C 7407 5375 269 269 3.63% 5.00%
D 7407 5375 185 185 2.50% 3.44%

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 196826 1430.16 696 685 137.1
A 15 223 11201 76.68 696 685 137.1
A 13 254 7952 52.99 696 685 137.1
B 0 213 48335 366.43 681 666 130.1
B 15 85 44200 334.65 681 666 130.1
B 12 111 15606 114.84 681 666 130.1
C 10 49 1060853 7200.69 637 642 147.2
C 0 10 609816 4137.36 637 642 147.2
C 0 207 392172 2659.17 637 642 147.2
D 10 253 281083 1788.54 654 638 156.8
D 13 249 248122 1578.33 654 638 156.8
D 12 128 219908 1398.4 654 638 156.8

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