ASTROSAT CZTI

Data Quality Report

Orbit 32886

Creation date: 2024-06-27T20:43:06.557617
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_005T05_9000004744_32886cztM0_level2.evt modeM0/AS1A11_005T05_9000004744_32886cztM0_level2_quad_clean.evt
Size (bytes)545,523,84074,606,400
Size520.3 MB 71.2 MB
Events in quadrant A2,483,441494,529
Events in quadrant B3,266,733500,523
Events in quadrant C2,952,119498,971
Events in quadrant D7,466,930400,539

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0310

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0105862
B0129361
C0120001
D0258281

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A519740.076967%
B51972825.426207%
C51971102.116606%
D5197129024.822013%

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 7170 5198 0 0 0.00% 0.00%
B 7170 5198 179 179 2.50% 3.44%
C 7170 5198 84 84 1.17% 1.62%
D 7170 5198 1169 1169 16.30% 22.49%

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 14 239 10876 81.29 637 627 126.1
A 13 254 9837 73.05 637 627 126.1
A 0 226 5445 38.21 637 627 126.1
B 5 172 577133 4956.54 626 610 116.3
B 0 190 41519 351.71 626 610 116.3
B 15 85 40061 339.17 626 610 116.3
C 0 10 320635 2228.11 628 635 143.6
C 3 233 79130 546.55 628 635 143.6
C 0 207 56676 390.21 628 635 143.6
D 8 195 1793218 12564.46 551 541 142.7
D 7 80 1762833 12351.5 551 541 142.7
D 12 218 879257 6158.72 551 541 142.7

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