ASTROSAT CZTI

Data Quality Report

Orbit 38057

Creation date: 2024-06-27T21:47:53.474789
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_044T01_9000005360_38057cztM0_level2.fits modeM0/AS1A11_044T01_9000005360_38057cztM0_level2_quad_clean.evt
Size (bytes)493,444,80087,301,440
Size470.6 MB 83.3 MB
Events in quadrant A2,726,193649,038
Events in quadrant B2,747,585672,782
Events in quadrant C5,117,273565,076
Events in quadrant D7,282,352403,091

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0109803
B0112562
C0184442
D0249942

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A504270.138834%
B5042781.547005%
C504290017.850060%
D5042181335.957953%

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 7165 5043 6 6 0.08% 0.12%
B 7165 5043 60 60 0.84% 1.19%
C 7165 5043 768 768 10.72% 15.23%
D 7165 5043 1727 1727 24.10% 34.25%

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 357436 2971.86 600 589 120.1
A 12 227 20886 169.04 600 589 120.1
A 13 6 11643 92.06 600 589 120.1
B 5 172 157765 1411.48 599 584 111.4
B 4 171 126214 1128.15 599 584 111.4
B 4 232 47218 418.77 599 584 111.4
C 1 23 2600575 20394.25 557 562 127.5
C 15 214 196240 1534.88 557 562 127.5
C 3 233 123453 963.94 557 562 127.5
D 12 227 3553354 31197.19 469 456 113.9
D 12 233 1417461 12442.4 469 456 113.9
D 13 249 216756 1899.28 469 456 113.9

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