ASTROSAT CZTI

Data Quality Report

Orbit 10105

Creation date: 2024-06-27T15:55:06.078608
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_10105cztM0_level2.evt modeM0/AS1G07_065T01_9000001454_10105cztM0_level2_quad_clean.evt
Size (bytes)455,906,88085,944,960
Size434.8 MB 82.0 MB
Events in quadrant A3,040,966549,957
Events in quadrant B3,247,177557,055
Events in quadrant C2,952,072541,855
Events in quadrant D4,131,319506,753

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A013685273
B014063289
C013546291
D016748486

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01322
D01322

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6415570.888542%
B6411791.232257%
C6404370.577764%
D63781382.163688%

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 7462 6538 0 0 0.00% 0.00%
B 7462 6536 6 6 0.08% 0.09%
C 7462 6538 0 0 0.00% 0.00%
D 7462 6531 107 107 1.43% 1.64%

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 15 223 15652 92.29 785 768 161.3
A 0 226 7200 39.88 785 768 161.3
A 12 194 6505 35.57 785 768 161.3
B 0 219 45895 298.8 786 768 151.0
B 4 239 41282 268.25 786 768 151.0
B 4 81 34253 221.71 786 768 151.0
C 13 61 5684 27.91 754 758 176.5
C 14 67 3902 17.82 754 758 176.5
C 14 234 3563 15.9 754 758 176.5
D 1 52 655021 3312.71 741 724 197.5
D 8 195 353414 1785.67 741 724 197.5
D 2 152 117495 591.21 741 724 197.5

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