ASTROSAT CZTI

Data Quality Report

Orbit 32234

Creation date: 2024-06-27T20:37:54.006388
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/AS1T04_054T01_9000004694_32234cztM0_level2.evt modeM0/AS1T04_054T01_9000004694_32234cztM0_level2_quad_clean.evt
Size (bytes)325,175,04039,242,880
Size310.1 MB 37.4 MB
Events in quadrant A1,712,731254,476
Events in quadrant B3,226,649230,921
Events in quadrant C1,992,334240,283
Events in quadrant D2,695,399231,697

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0660
B0660
C0660
D0660

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A071051
B0117701
C079981
D0103462

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3244361.109741%
B324438811.960543%
C32441845.672010%
D3243952.929386%

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 4449 3245 0 0 0.00% 0.00%
B 4449 3245 209 209 4.70% 6.44%
C 4449 3245 12 12 0.27% 0.37%
D 4448 3244 46 46 1.03% 1.42%

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 8356 87.88 441 433 90.2
A 13 254 6519 67.51 441 433 90.2
A 3 137 4270 42.56 441 433 90.2
B 6 159 895567 11248.76 418 407 79.6
B 4 80 560951 7043.91 418 407 79.6
B 5 172 75349 941.74 418 407 79.6
C 0 10 136273 1384.11 420 423 98.1
C 14 238 82134 832.51 420 423 98.1
C 3 233 75357 763.47 420 423 98.1
D 8 195 875715 8506.48 427 416 102.9
D 12 218 147863 1432.94 427 416 102.9
D 14 52 23592 225.23 427 416 102.9

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