ASTROSAT CZTI

Data Quality Report

Orbit 12199

Creation date: 2024-06-27T16:23:42.177569
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/AS1G08_010T03_9000001800_12199cztM0_level2.evt modeM0/AS1G08_010T03_9000001800_12199cztM0_level2_quad_clean.evt
Size (bytes)458,052,48086,253,120
Size436.8 MB 82.3 MB
Events in quadrant A3,471,313554,177
Events in quadrant B3,659,058553,239
Events in quadrant C2,902,407544,443
Events in quadrant D3,420,706529,663

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142622
B0147201
C0127121
D0142441

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61631161.882200%
B61632003.245173%
C6163530.859971%
D6163801.298069%

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 7304 6165 10 10 0.14% 0.16%
B 7304 6165 66 66 0.90% 1.07%
C 7304 6165 4 4 0.05% 0.06%
D 7304 6165 19 19 0.26% 0.31%

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 146740 956.06 758 743 152.7
A 13 251 117651 765.57 758 743 152.7
A 1 178 89487 581.14 758 743 152.7
B 4 239 591707 4153.02 747 730 142.3
B 11 51 63889 443.84 747 730 142.3
B 0 219 25837 176.44 747 730 142.3
C 15 208 59992 356.19 723 726 166.4
C 8 128 9663 53.71 723 726 166.4
C 13 61 5212 26.96 723 726 166.4
D 1 52 523078 3064.84 726 707 170.4
D 8 195 41988 242.2 726 707 170.4
D 10 50 35973 206.91 726 707 170.4

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