ASTROSAT CZTI

Data Quality Report

Orbit 11103

Creation date: 2024-06-27T16:08:19.919116
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/AS1G08_071T02_9000001620_11103cztM0_level2.evt modeM0/AS1G08_071T02_9000001620_11103cztM0_level2_quad_clean.evt
Size (bytes)523,828,80061,344,000
Size499.6 MB 58.5 MB
Events in quadrant A3,305,240358,000
Events in quadrant B3,688,865362,060
Events in quadrant C3,085,902357,137
Events in quadrant D5,343,178326,286

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137022
B0148861
C0133731
D0201961

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6503751.153314%
B65031622.491158%
C6503440.676611%
D65034597.058281%

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 7678 6504 3 3 0.04% 0.05%
B 7678 6504 56 56 0.73% 0.86%
C 7678 6504 0 0 0.00% 0.00%
D 7678 6504 356 356 4.64% 5.47%

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 15 90998 541.89 814 798 166.5
A 14 254 53202 314.82 814 798 166.5
A 11 29 26419 153.92 814 798 166.5
B 4 239 257424 1650.07 817 797 155.5
B 10 16 148444 949.34 817 797 155.5
B 15 204 32207 201.96 817 797 155.5
C 13 61 5814 27.23 789 792 184.4
C 8 128 4701 21.19 789 792 184.4
C 8 112 2558 9.57 789 792 184.4
D 1 52 1091047 5947.49 752 733 183.3
D 10 253 792760 4320.38 752 733 183.3
D 8 195 300126 1633.14 752 733 183.3

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