ASTROSAT CZTI

Data Quality Report

Orbit 23424

Creation date: 2024-06-27T18:54:23.415114
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/AS1A07_138T04_9000003462_23424cztM0_level2.evt modeM0/AS1A07_138T04_9000003462_23424cztM0_level2_quad_clean.evt
Size (bytes)220,970,88027,000,000
Size210.7 MB 25.7 MB
Events in quadrant A1,264,680160,219
Events in quadrant B1,315,995161,389
Events in quadrant C1,329,476153,063
Events in quadrant D2,593,610146,214

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A055240
B056130
C055790
D095090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0560
B0560
C0560
D0560

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A273700.000000%
B2737100.365364%
C2737190.694191%
D273736413.299233%

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 2737 2737 0 0 0.00% 0.00%
B 2737 2737 3 3 0.11% 0.11%
C 2737 2737 0 0 0.00% 0.00%
D 2737 2737 355 355 12.97% 12.97%

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 8 205 4702 64.04 326 318 68.5
A 13 254 4203 56.75 326 318 68.5
A 0 226 2837 36.8 326 318 68.5
B 0 190 22448 353.38 325 317 62.6
B 12 111 7273 111.07 325 317 62.6
B 0 229 6831 104.01 325 317 62.6
C 14 238 49837 664.95 313 315 74.5
C 10 9 40099 534.19 313 315 74.5
C 7 247 13843 181.64 313 315 74.5
D 1 52 1282748 16979.02 304 295 75.5
D 12 233 54162 713.17 304 295 75.5
D 12 227 49720 654.36 304 295 75.5

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