ASTROSAT CZTI

Data Quality Report

Orbit 04327

Creation date: 2024-06-27T14:40:26.009447
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/AS1G05_219T01_9000000540_04327cztM0_level2.evt modeM0/AS1G05_219T01_9000000540_04327cztM0_level2_quad_clean.evt
Size (bytes)810,489,60087,226,560
Size772.9 MB 83.2 MB
Events in quadrant A3,367,732627,752
Events in quadrant B14,216,949367,199
Events in quadrant C3,077,111605,748
Events in quadrant D3,448,507590,287

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140322
B0465421
C0133681
D0145251

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64231221.899424%
B6423519780.912346%
C6423550.856298%
D64231322.055114%

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 7698 6423 29 29 0.38% 0.45%
B 7697 6422 4768 4768 61.95% 74.24%
C 7698 6423 2 2 0.03% 0.03%
D 7698 6423 77 77 1.00% 1.20%

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 13 251 139696 833.57 817 797 166.6
A 14 111 39196 230.44 817 797 166.6
A 8 15 31363 183.43 817 797 166.6
B 3 0 11734679 109447.0 569 557 107.2
B 14 167 92082 853.68 569 557 107.2
B 8 3 76293 706.41 569 557 107.2
C 10 65 19989 106.5 778 783 180.3
C 9 247 17440 92.37 778 783 180.3
C 13 61 6574 32.11 778 783 180.3
D 14 34 152912 809.73 782 761 187.9
D 2 136 86376 455.63 782 761 187.9
D 13 223 69932 368.12 782 761 187.9

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