ASTROSAT CZTI

Data Quality Report

Orbit 29085

Creation date: 2024-06-27T20:00:25.346173
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/AS1T03_275T01_9000004180_29085cztM0_level2.evt modeM0/AS1T03_275T01_9000004180_29085cztM0_level2_quad_clean.evt
Size (bytes)580,109,760104,679,360
Size553.2 MB 99.8 MB
Events in quadrant A3,359,790692,815
Events in quadrant B3,571,282704,381
Events in quadrant C3,463,638664,960
Events in quadrant D6,690,099610,785

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0146731
B0151361
C0147451
D0248621

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7146781.091520%
B71471271.776969%
C71461652.308984%
D714679811.167086%

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 7261 7146 0 0 0.00% 0.00%
B 7262 7147 7 7 0.10% 0.10%
C 7260 7145 0 0 0.00% 0.00%
D 7261 7146 658 658 9.06% 9.21%

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 13 6 16548 89.56 865 846 175.3
A 13 254 12663 67.4 865 846 175.3
A 3 137 8539 43.88 865 846 175.3
B 5 172 62152 373.28 864 844 164.2
B 10 245 37738 224.63 864 844 164.2
B 12 16 22528 132.02 864 844 164.2
C 14 238 133974 674.94 836 840 197.3
C 3 233 24468 119.79 836 840 197.3
C 2 114 17271 83.3 836 840 197.3
D 1 52 2811869 14434.51 810 786 194.7
D 8 195 609552 3125.93 810 786 194.7
D 2 250 116389 593.6 810 786 194.7

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