ASTROSAT CZTI

Data Quality Report

Orbit 22291

Creation date: 2024-06-27T18:39:04.493659
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_018T08_9000003296_22291cztM0_level2.evt modeM0/AS1A07_018T08_9000003296_22291cztM0_level2_quad_clean.evt
Size (bytes)496,808,64064,817,280
Size473.8 MB 61.8 MB
Events in quadrant A3,239,893399,545
Events in quadrant B3,359,127410,579
Events in quadrant C3,240,800382,699
Events in quadrant D4,792,162343,344

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130481
B0135391
C0131721
D0180781

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6100330.540984%
B6100560.918033%
C6101621.016227%
D61015178.474021%

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 7495 6101 0 0 0.00% 0.00%
B 7495 6101 5 5 0.07% 0.08%
C 7496 6102 0 0 0.00% 0.00%
D 7496 6102 442 442 5.90% 7.24%

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 7982 42.86 841 829 166.9
A 0 226 7327 38.94 841 829 166.9
A 3 137 6757 35.52 841 829 166.9
B 3 64 68949 435.83 843 827 156.3
B 12 111 18008 109.92 843 827 156.3
B 11 111 16500 100.27 843 827 156.3
C 14 238 131046 707.77 797 806 184.0
C 13 61 5442 25.19 797 806 184.0
C 0 10 2844 11.08 797 806 184.0
D 1 52 1821303 9776.93 778 758 186.2
D 2 234 22429 116.38 778 758 186.2
D 2 120 13628 69.12 778 758 186.2

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