ASTROSAT CZTI

Data Quality Report

Orbit 37814

Creation date: 2024-06-27T21:44:49.417681
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_054T01_9000005350_37814cztM0_level2.evt modeM0/AS1T05_054T01_9000005350_37814cztM0_level2_quad_clean.evt
Size (bytes)434,223,36070,914,240
Size414.1 MB 67.6 MB
Events in quadrant A2,855,206452,916
Events in quadrant B3,959,994432,211
Events in quadrant C2,772,236454,193
Events in quadrant D3,195,012428,675

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0118483
B0153152
C0116222
D0132982

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5416250.461595%
B54164568.419498%
C5416420.775480%
D54161322.437223%

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 6999 5417 11 11 0.16% 0.20%
B 6999 5417 438 438 6.26% 8.09%
C 6999 5417 42 42 0.60% 0.78%
D 6999 5416 131 131 1.87% 2.42%

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 352593 2839.19 610 599 124.0
A 15 222 49459 394.11 610 599 124.0
A 9 143 31757 251.32 610 599 124.0
B 10 246 939769 8313.46 589 574 113.0
B 5 172 404312 3573.76 589 574 113.0
B 0 189 79446 698.15 589 574 113.0
C 15 214 244176 1770.91 590 593 137.5
C 0 10 120111 868.93 590 593 137.5
C 0 207 85264 615.58 590 593 137.5
D 12 233 329013 2291.53 585 570 143.3
D 2 249 208724 1452.28 585 570 143.3
D 13 249 93211 646.35 585 570 143.3

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