ASTROSAT CZTI

Data Quality Report

Orbit 06240

Creation date: 2024-06-27T15:04:36.927012
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/AS1A02_151T01_9000000818_06240cztM0_level2.evt modeM0/AS1A02_151T01_9000000818_06240cztM0_level2_quad_clean.evt
Size (bytes)453,648,960100,209,600
Size432.6 MB 95.6 MB
Events in quadrant A3,004,629654,277
Events in quadrant B3,459,483657,579
Events in quadrant C2,861,657646,019
Events in quadrant D3,963,463616,032

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135612
B0147631
C0134731
D0164621

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6606791.195883%
B66061582.391765%
C6606400.605510%
D66061432.164699%

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 7636 6606 6 6 0.08% 0.09%
B 7635 6606 73 73 0.96% 1.11%
C 7636 6607 0 0 0.00% 0.00%
D 7636 6607 107 107 1.40% 1.62%

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 15 236 28143 176.57 762 745 155.2
A 14 111 27542 172.7 762 745 155.2
A 8 15 11315 68.12 762 745 155.2
B 3 64 386921 2640.88 766 748 146.2
B 0 219 54446 367.22 766 748 146.2
B 4 81 17733 116.15 766 748 146.2
C 13 61 5665 29.02 732 736 169.9
C 8 222 2593 10.93 732 736 169.9
C 5 175 2283 9.11 732 736 169.9
D 11 241 877782 4944.3 729 707 177.4
D 2 63 177976 999.31 729 707 177.4
D 13 169 82308 460.01 729 707 177.4

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