ASTROSAT CZTI

Data Quality Report

Orbit 10593

Creation date: 2024-06-27T16:01:14.031296
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/AS1T01_191T01_9000001536_10593cztM0_level2.evt modeM0/AS1T01_191T01_9000001536_10593cztM0_level2_quad_clean.evt
Size (bytes)408,957,12084,127,680
Size390.0 MB 80.2 MB
Events in quadrant A2,596,108556,167
Events in quadrant B3,941,408537,758
Events in quadrant C2,634,666553,356
Events in quadrant D2,842,722519,020

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0112892
B0153091
C0114301
D0121581

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5449170.311984%
B54493796.955405%
C5449110.201872%
D5449230.422096%

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 6719 5450 0 0 0.00% 0.00%
B 6719 5450 259 259 3.85% 4.75%
C 6719 5450 7 7 0.10% 0.13%
D 6719 5450 7 7 0.10% 0.13%

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 10910 74.48 667 655 137.7
A 15 239 6159 39.98 667 655 137.7
A 0 226 5968 38.59 667 655 137.7
B 4 239 1291959 10310.58 655 643 125.2
B 11 51 41848 329.0 655 643 125.2
B 0 214 29673 231.79 655 643 125.2
C 15 48 110236 736.41 642 651 148.8
C 4 175 11458 72.62 642 651 148.8
C 14 234 8429 52.27 642 651 148.8
D 8 195 131128 862.69 629 614 151.3
D 2 16 125047 822.49 629 614 151.3
D 5 222 70269 460.41 629 614 151.3

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