ASTROSAT CZTI

Data Quality Report

Orbit 41114

Creation date: 2024-06-27T22:24:39.546361
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_052T04_9000005602_41114cztM0_level2.fits modeM0/AS1A12_052T04_9000005602_41114cztM0_level2_quad_clean.evt
Size (bytes)341,637,12088,032,960
Size325.8 MB 84.0 MB
Events in quadrant A2,935,938604,921
Events in quadrant B3,080,049596,213
Events in quadrant C2,650,261581,510
Events in quadrant D3,582,736525,708

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0116833
B0125372
C0109992
D0139992

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0290
B0290
C0290
D0300

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5099500.980584%
B50992023.961561%
C5099280.549127%
D50992785.452049%

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 7222 5100 34 34 0.47% 0.67%
B 7222 5100 124 124 1.72% 2.43%
C 7222 5100 23 23 0.32% 0.45%
D 7222 5100 246 246 3.41% 4.82%

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 511176 4292.95 586 575 118.9
A 2 79 131129 1097.65 586 575 118.9
A 12 189 22001 180.14 586 575 118.9
B 0 245 647530 5834.35 572 556 110.9
B 0 186 138346 1242.58 572 556 110.9
B 4 81 29558 261.54 572 556 110.9
C 15 214 221287 1692.04 561 563 130.4
C 14 254 164627 1257.7 561 563 130.4
C 0 10 71794 546.05 561 563 130.4
D 2 249 737583 5375.78 557 540 137.1
D 13 249 480843 3503.2 557 540 137.1
D 9 49 108007 783.83 557 540 137.1

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