ASTROSAT CZTI

Data Quality Report

Orbit 24405

Creation date: 2024-06-27T19:05:40.103566
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_001T02_9000003600_24405cztM0_level2.evt modeM0/AS1A07_001T02_9000003600_24405cztM0_level2_quad_clean.evt
Size (bytes)460,765,440106,142,400
Size439.4 MB 101.2 MB
Events in quadrant A3,107,334706,677
Events in quadrant B3,232,012726,027
Events in quadrant C3,247,728685,370
Events in quadrant D3,939,999657,488

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0230
C0230
D0230

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130802
B0133422
C0133172
D0159293

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6290340.540541%
B6290741.176471%
C6290751.192369%
D62891292.051201%

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 6291 0 0 0.00% 0.00%
B 7575 6291 7 7 0.09% 0.11%
C 7575 6291 4 4 0.05% 0.06%
D 7574 6290 52 52 0.69% 0.83%

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 13 254 10559 61.3 805 791 159.4
A 0 226 6968 38.76 805 791 159.4
A 3 137 6877 38.19 805 791 159.4
B 10 247 33490 218.71 809 791 149.5
B 0 190 18850 120.79 809 791 149.5
B 12 111 17035 108.65 809 791 149.5
C 14 238 128101 723.39 772 778 176.0
C 2 16 64588 362.54 772 778 176.0
C 7 247 35794 198.95 772 778 176.0
D 1 52 817695 4369.3 771 748 187.0
D 12 218 72571 384.13 771 748 187.0
D 8 195 47660 250.9 771 748 187.0

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