ASTROSAT CZTI

Data Quality Report

Orbit 43463

Creation date: 2024-06-27T22:52:16.798875
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_018T01_9000005874_43463cztM0_level2.fits modeM0/AS1A12_018T01_9000005874_43463cztM0_level2_quad_clean.evt
Size (bytes)339,275,52087,261,120
Size323.6 MB 83.2 MB
Events in quadrant A3,999,075566,158
Events in quadrant B2,839,636598,618
Events in quadrant C2,465,124572,700
Events in quadrant D2,830,330523,106

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0157026
B0121852
C0110062
D0125012

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0290
C0290
D0290

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A54531903.484321%
B5453130.238401%
C545330.055016%
D5453520.953604%

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 7126 5454 158 158 2.22% 2.90%
B 7126 5454 3 3 0.04% 0.06%
C 7126 5454 2 2 0.03% 0.04%
D 7126 5454 54 54 0.76% 0.99%

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 625233 5405.2 562 551 115.6
A 15 237 612970 5299.09 562 551 115.6
A 15 222 530582 4586.21 562 551 115.6
B 0 245 288859 2618.31 570 555 110.1
B 0 189 101598 917.65 570 555 110.1
B 0 199 87448 789.14 570 555 110.1
C 15 214 244454 1866.47 558 559 130.7
C 14 254 20458 152.28 558 559 130.7
C 3 233 16017 118.3 558 559 130.7
D 1 52 310052 2263.89 556 537 136.7
D 9 49 119474 869.94 556 537 136.7
D 1 47 74691 542.38 556 537 136.7

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