ASTROSAT CZTI

Data Quality Report

Orbit 42715

Creation date: 2024-06-27T22:43:22.996777
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/AS1A05_013T01_9000005822_42715cztM0_level2.fits modeM0/AS1A05_013T01_9000005822_42715cztM0_level2_quad_clean.evt
Size (bytes)316,437,12089,239,680
Size301.8 MB 85.1 MB
Events in quadrant A2,952,548600,249
Events in quadrant B2,868,542596,209
Events in quadrant C2,620,895581,094
Events in quadrant D2,842,438539,537

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120731
B0122931
C0114001
D0124121

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A550490.163517%
B55051212.198002%
C550580.145322%
D5505641.162579%

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 7088 5505 4 4 0.06% 0.07%
B 7089 5506 95 95 1.34% 1.73%
C 7089 5506 6 6 0.08% 0.11%
D 7089 5506 66 66 0.93% 1.20%

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 595975 4763.99 599 586 125.0
A 12 189 16457 126.99 599 586 125.0
A 13 254 9083 67.98 599 586 125.0
B 5 172 197874 1698.32 592 575 116.2
B 15 85 130017 1114.22 592 575 116.2
B 12 18 58024 494.51 592 575 116.2
C 15 214 229768 1670.97 581 585 137.2
C 0 239 72584 524.94 581 585 137.2
C 3 233 38827 278.82 581 585 137.2
D 2 249 250446 1766.23 578 562 141.5
D 12 233 183598 1293.73 578 562 141.5
D 13 249 73350 514.48 578 562 141.5

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