ASTROSAT CZTI

Data Quality Report

Orbit 29204

Creation date: 2024-06-27T20:01:27.007170
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/AS1A10_053T34_9000004192_29204cztM0_level2.evt modeM0/AS1A10_053T34_9000004192_29204cztM0_level2_quad_clean.evt
Size (bytes)1,505,790,720157,037,760
Size1.4 GB 149.8 MB
Events in quadrant A6,683,8881,004,482
Events in quadrant B7,586,6211,001,610
Events in quadrant C18,361,069868,307
Events in quadrant D12,021,620904,615

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02860
B02860
C02860
D02860

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0288812
B0314152
C0644402
D0451792

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A141241270.899179%
B141242291.621354%
C14124316822.429907%
D1412411308.000566%

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 15024 14126 1 1 0.01% 0.01%
B 15024 14126 39 39 0.26% 0.28%
C 15024 14126 2013 2013 13.40% 14.25%
D 15024 14126 1059 1059 7.05% 7.50%

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 15 169 30244 82.39 1720 1684 346.6
A 13 254 28986 78.77 1720 1684 346.6
A 0 13 19311 50.85 1720 1684 346.6
B 0 183 343693 1044.11 1705 1661 327.6
B 10 245 247581 750.72 1705 1661 327.6
B 0 229 153867 464.64 1705 1661 327.6
C 3 233 11958107 32533.95 1567 1582 367.5
C 14 238 249049 673.36 1567 1582 367.5
C 2 114 32904 85.23 1567 1582 367.5
D 1 52 3935075 10074.24 1622 1580 390.5
D 8 195 1198693 3065.98 1622 1580 390.5
D 2 250 312030 795.11 1622 1580 390.5

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