ASTROSAT CZTI

Data Quality Report

Orbit 17193

Creation date: 2024-06-27T17:33:24.252050
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/AS1A05_185T04_9000002548_17193cztM0_level2.evt modeM0/AS1A05_185T04_9000002548_17193cztM0_level2_quad_clean.evt
Size (bytes)519,788,160104,106,240
Size495.7 MB 99.3 MB
Events in quadrant A3,310,362700,282
Events in quadrant B3,494,787695,308
Events in quadrant C4,830,789647,522
Events in quadrant D3,655,134646,336

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141832
B0148082
C0188852
D0154852

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6643691.038687%
B6643981.475237%
C66431902.860154%
D66432223.341864%

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 7793 6644 0 0 0.00% 0.00%
B 7793 6643 11 11 0.14% 0.17%
C 7793 6643 0 0 0.00% 0.00%
D 7793 6643 118 118 1.51% 1.78%

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 12 189 71102 414.63 843 826 169.5
A 0 226 7376 38.65 843 826 169.5
A 12 194 6231 31.89 843 826 169.5
B 7 220 86827 539.85 834 814 159.3
B 0 219 65185 404.02 834 814 159.3
B 4 216 38720 237.91 834 814 159.3
C 3 233 1596707 8586.12 797 803 185.9
C 14 238 122530 654.9 797 803 185.9
C 13 61 5827 27.03 797 803 185.9
D 5 222 449287 2277.32 813 791 196.9
D 12 233 43156 215.12 813 791 196.9
D 1 52 34395 170.63 813 791 196.9

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