ASTROSAT CZTI

Data Quality Report

Orbit 43100

Creation date: 2024-06-27T22:48:01.881744
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/AS1T05_153T01_9000005848_43100cztM0_level2.fits modeM0/AS1T05_153T01_9000005848_43100cztM0_level2_quad_clean.evt
Size (bytes)331,585,92087,180,480
Size316.2 MB 83.1 MB
Events in quadrant A2,953,616597,778
Events in quadrant B2,660,819594,728
Events in quadrant C2,636,252566,154
Events in quadrant D3,617,167515,703

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0240
C0240
D0240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0118802
B0114112
C0111942
D0145502

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5216350.671012%
B5216500.958589%
C5216410.786043%
D52162464.716258%

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 7160 5217 20 20 0.28% 0.38%
B 7160 5217 25 25 0.35% 0.48%
C 7160 5217 36 36 0.50% 0.69%
D 7160 5217 192 192 2.68% 3.68%

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 601326 5201.71 565 554 115.5
A 15 237 106425 916.67 565 554 115.5
A 12 189 38804 331.18 565 554 115.5
B 0 229 139529 1286.29 559 543 108.1
B 0 245 109062 1004.32 559 543 108.1
B 5 255 85507 786.32 559 543 108.1
C 14 254 250827 1935.22 552 555 129.3
C 15 214 221503 1708.47 552 555 129.3
C 12 249 5049 34.75 552 555 129.3
D 12 233 879465 6641.87 546 528 132.3
D 1 52 432038 3260.8 546 528 132.3
D 5 171 78318 587.83 546 528 132.3

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