ASTROSAT CZTI

Data Quality Report

Orbit 09959

Creation date: 2024-06-27T15:53:00.311386
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/AS1G07_047T01_9000001424_09959cztM0_level2.evt modeM0/AS1G07_047T01_9000001424_09959cztM0_level2_quad_clean.evt
Size (bytes)386,124,48047,076,480
Size368.2 MB 44.9 MB
Events in quadrant A1,887,227303,738
Events in quadrant B2,897,024303,793
Events in quadrant C1,887,438313,330
Events in quadrant D4,752,296224,188

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A08461143
B011444181
C08401123
D017078365

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0800
B0804
C0802
D0800

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3972330.830816%
B39752626.591195%
C398170.175835%
D396282020.696618%

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 5344 4039 0 0 0.00% 0.00%
B 5344 4033 174 174 3.26% 4.31%
C 5344 4038 0 0 0.00% 0.00%
D 5344 4015 712 712 13.32% 17.73%

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 0 226 4510 40.1 488 479 100.5
A 13 253 4241 37.42 488 479 100.5
A 12 194 3998 35.0 488 479 100.5
B 4 81 899742 9386.81 490 479 95.8
B 4 239 45534 470.3 490 479 95.8
B 0 214 15306 154.77 490 479 95.8
C 13 61 3653 28.05 483 486 112.9
C 14 67 3072 22.91 483 486 112.9
C 8 222 1634 10.17 483 486 112.9
D 1 52 1809157 17812.18 415 403 101.5
D 2 16 801141 7885.48 415 403 101.5
D 8 195 289491 2846.87 415 403 101.5

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