ASTROSAT CZTI

Data Quality Report

Orbit 10004

Creation date: 2024-06-27T15:53:33.299608
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/AS1G07_002T02_9000001432_10004cztM0_level2.evt modeM0/AS1G07_002T02_9000001432_10004cztM0_level2_quad_clean.evt
Size (bytes)482,238,72086,339,520
Size459.9 MB 82.3 MB
Events in quadrant A3,620,964535,947
Events in quadrant B3,145,741554,789
Events in quadrant C3,007,381547,315
Events in quadrant D4,382,282516,416

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01406
B01402
C01404
D01406

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A015879654
B014369469
C014098456
D018203677

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65831352.050737%
B6593781.183073%
C6601410.621118%
D65741001.521144%

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 7674 6784 51 51 0.66% 0.75%
B 7674 6792 0 0 0.00% 0.00%
C 7674 6801 0 0 0.00% 0.00%
D 7674 6787 37 37 0.48% 0.55%

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 614876 3834.02 780 765 160.2
A 13 251 7315 40.89 780 765 160.2
A 0 226 7102 39.56 780 765 160.2
B 0 219 55699 362.73 788 770 151.4
B 12 111 17387 109.73 788 770 151.4
B 11 111 14125 88.19 788 770 151.4
C 5 128 10642 54.73 768 771 180.3
C 13 61 5699 27.32 768 771 180.3
C 14 67 3498 15.12 768 771 180.3
D 8 195 528932 2797.78 754 735 188.8
D 2 16 491095 2597.36 754 735 188.8
D 1 52 235623 1244.17 754 735 188.8

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