ASTROSAT CZTI

Data Quality Report

Orbit 10118

Creation date: 2024-06-27T15:55:12.415434
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_065T01_9000001454_10118cztM0_level2.evt modeM0/AS1G07_065T01_9000001454_10118cztM0_level2_quad_clean.evt
Size (bytes)464,394,240104,181,120
Size442.9 MB 99.4 MB
Events in quadrant A3,406,365690,989
Events in quadrant B3,483,019696,223
Events in quadrant C3,130,258671,022
Events in quadrant D3,605,076645,874

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143603
B0145942
C0135772
D0147662

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64721362.101360%
B64721372.116811%
C6472901.390606%
D64721061.637824%

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 7682 6472 0 0 0.00% 0.00%
B 7682 6472 9 9 0.12% 0.14%
C 7682 6472 0 0 0.00% 0.00%
D 7682 6472 16 16 0.21% 0.25%

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 168102 976.47 839 823 171.3
A 0 226 8007 41.93 839 823 171.3
A 15 174 7614 39.64 839 823 171.3
B 0 214 127873 801.93 833 814 158.4
B 4 239 44552 276.05 833 814 158.4
B 0 219 27945 171.24 833 814 158.4
C 13 61 5979 28.04 801 806 184.4
C 14 67 4479 19.91 801 806 184.4
C 8 222 2481 9.08 801 806 184.4
D 8 195 226369 1065.36 800 785 211.7
D 2 16 105115 492.72 800 785 211.7
D 2 14 57620 268.41 800 785 211.7

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