ASTROSAT CZTI

Data Quality Report

Orbit 05154

Creation date: 2024-06-27T14:52:03.607210
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_214T01_9000000652_05154cztM0_level2.evt modeM0/AS1G05_214T01_9000000652_05154cztM0_level2_quad_clean.evt
Size (bytes)440,210,88063,172,800
Size419.8 MB 60.2 MB
Events in quadrant A3,100,205368,413
Events in quadrant B3,370,616370,148
Events in quadrant C3,170,066374,003
Events in quadrant D3,255,196352,801

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132843
B0139202
C0133472
D0139312

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6410831.294852%
B6410971.513261%
C6410490.764431%
D6410620.967239%

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 7575 6411 1 1 0.01% 0.02%
B 7575 6411 5 5 0.07% 0.08%
C 7575 6411 0 0 0.00% 0.00%
D 7575 6411 8 8 0.11% 0.12%

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 50 22114 129.77 799 780 164.4
A 0 226 7775 42.55 799 780 164.4
A 12 194 7728 42.26 799 780 164.4
B 4 80 116038 734.65 808 790 156.9
B 5 175 37417 233.48 808 790 156.9
B 4 48 34768 216.59 808 790 156.9
C 1 16 139591 769.23 776 782 180.5
C 13 61 6299 30.57 776 782 180.5
C 14 67 4765 22.07 776 782 180.5
D 1 239 126287 656.88 774 752 191.1
D 2 136 89316 463.43 774 752 191.1
D 10 15 51457 265.32 774 752 191.1

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