ASTROSAT CZTI

Data Quality Report

Orbit 17612

Creation date: 2024-06-27T17:38:37.498846
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_027T01_9000002608_17612cztM0_level2.evt modeM0/AS1T03_027T01_9000002608_17612cztM0_level2_quad_clean.evt
Size (bytes)315,547,20055,794,240
Size300.9 MB 53.2 MB
Events in quadrant A2,118,672350,175
Events in quadrant B2,138,054354,562
Events in quadrant C2,933,782340,982
Events in quadrant D2,071,550339,594

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0880
B0880
C0880
D0880

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A089611
B090201
C0121242
D090721

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4319310.717759%
B4319380.879833%
C4318882.037981%
D4318250.578972%

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 5389 4319 0 0 0.00% 0.00%
B 5389 4319 0 0 0.00% 0.00%
C 5388 4319 0 0 0.00% 0.00%
D 5388 4319 2 2 0.04% 0.05%

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 0 13 21125 186.98 542 532 110.1
A 15 174 10767 92.93 542 532 110.1
A 0 226 4728 38.1 542 532 110.1
B 12 111 12390 112.32 541 527 105.6
B 11 111 11140 100.48 541 527 105.6
B 14 111 9369 83.72 541 527 105.6
C 3 233 795971 6535.34 518 523 121.7
C 14 238 80970 660.95 518 523 121.7
C 5 218 37599 304.61 518 523 121.7
D 13 189 64986 499.96 528 514 129.0
D 2 234 14435 107.95 528 514 129.0
D 2 152 9463 69.4 528 514 129.0

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