ASTROSAT CZTI

Data Quality Report

Orbit 12924

Creation date: 2024-06-27T16:34:00.603580
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/AS1A04_116T01_9000001896_12924cztM0_level2.evt modeM0/AS1A04_116T01_9000001896_12924cztM0_level2_quad_clean.evt
Size (bytes)479,931,84082,347,840
Size457.7 MB 78.5 MB
Events in quadrant A3,371,760537,632
Events in quadrant B4,363,436485,691
Events in quadrant C2,865,012548,872
Events in quadrant D3,545,177520,161

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138122
B0166671
C0122091
D0141071

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A57291252.181882%
B572980414.033863%
C5729891.553500%
D57291061.850236%

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 6995 5731 15 15 0.21% 0.26%
B 6995 5731 369 369 5.28% 6.44%
C 6995 5731 0 0 0.00% 0.00%
D 6995 5731 49 49 0.70% 0.85%

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 1 162 125090 844.97 745 732 147.2
A 15 174 85507 576.02 745 732 147.2
A 12 189 71236 479.05 745 732 147.2
B 4 239 1457827 11664.32 681 666 124.9
B 3 64 163167 1300.79 681 666 124.9
B 0 187 36767 288.98 681 666 124.9
C 4 112 11118 63.21 729 733 164.3
C 14 234 8581 47.77 729 733 164.3
C 13 61 5605 29.65 729 733 164.3
D 8 195 464771 2712.87 726 706 171.1
D 1 52 287833 1678.51 726 706 171.1
D 2 234 23864 135.38 726 706 171.1

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