ASTROSAT CZTI

Data Quality Report

Orbit 40290

Creation date: 2024-06-27T22:14:37.453551
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/AS1A12_056T02_9000005538_40290cztM0_level2.fits modeM0/AS1A12_056T02_9000005538_40290cztM0_level2_quad_clean.evt
Size (bytes)336,738,24091,860,480
Size321.1 MB 87.6 MB
Events in quadrant A3,180,337622,635
Events in quadrant B2,557,345639,359
Events in quadrant C2,788,360606,558
Events in quadrant D3,526,220541,997

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0128233
B0111722
C0114972
D0142742

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0250

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5298551.038128%
B5298330.622877%
C5298541.019253%
D52982234.209136%

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 7001 5299 30 30 0.43% 0.57%
B 7001 5299 15 15 0.21% 0.28%
C 7001 5299 52 52 0.74% 0.98%
D 7001 5299 196 196 2.80% 3.70%

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 457735 3806.99 589 580 120.1
A 6 10 251455 2089.18 589 580 120.1
A 13 248 166413 1380.99 589 580 120.1
B 5 255 144006 1258.45 589 574 114.0
B 4 171 52618 456.63 589 574 114.0
B 0 230 22427 191.73 589 574 114.0
C 15 214 223485 1635.57 581 585 136.3
C 9 187 161599 1181.47 581 585 136.3
C 14 254 122518 894.7 581 585 136.3
D 12 227 490053 3523.74 566 552 138.9
D 2 250 431359 3101.22 566 552 138.9
D 1 47 276562 1986.89 566 552 138.9

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