ASTROSAT CZTI

Data Quality Report

Orbit 29061

Creation date: 2024-06-27T19:59:50.462675
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_094T22_9000004168_29061cztM0_level2.evt modeM0/AS1A10_094T22_9000004168_29061cztM0_level2_quad_clean.evt
Size (bytes)179,326,08038,664,000
Size171.0 MB 36.9 MB
Events in quadrant A1,095,055265,377
Events in quadrant B1,104,347269,441
Events in quadrant C1,077,866252,150
Events in quadrant D2,016,131238,574

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A045441
B045551
C044671
D074481

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0400
B0400
C0400
D0400

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1999522.601301%
B1999552.751376%
C1999643.201601%
D199921010.505253%

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 3058 1998 0 0 0.00% 0.00%
B 3058 1998 1 1 0.03% 0.05%
C 3058 1998 0 0 0.00% 0.00%
D 3058 1998 155 155 5.07% 7.76%

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 13 254 3821 61.06 282 275 58.1
A 3 137 2653 40.95 282 275 58.1
A 6 16 2497 38.26 282 275 58.1
B 10 246 9663 175.62 276 270 53.5
B 3 209 6158 110.09 276 270 53.5
B 12 111 6048 108.03 276 270 53.5
C 14 238 42889 678.8 263 264 62.8
C 2 114 5035 75.98 263 264 62.8
C 13 61 1762 23.86 263 264 62.8
D 1 52 507021 7997.72 264 257 63.4
D 8 195 245338 3867.86 264 257 63.4
D 12 233 238751 3763.9 264 257 63.4

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