ASTROSAT CZTI

Data Quality Report

Orbit 10454

Creation date: 2024-06-27T15:59:26.669884
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/AS1A03_126T01_9000001512_10454cztM0_level2.evt modeM0/AS1A03_126T01_9000001512_10454cztM0_level2_quad_clean.evt
Size (bytes)501,577,92070,934,400
Size478.3 MB 67.6 MB
Events in quadrant A3,655,504386,976
Events in quadrant B3,604,105437,030
Events in quadrant C2,890,222436,032
Events in quadrant D4,613,462448,989

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A021272
B021279
C021274
D020670

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02944014853
B02494610275
C0215798496
D0256647659

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A021
B021
C021
D021

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A57001522.666667%
B62183014.840785%
C63511081.700520%
D67874787.042876%

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 7212 6279 0 0 0.00% 0.00%
B 7212 6698 121 121 1.68% 1.81%
C 7212 6825 3 3 0.04% 0.04%
D 7212 6944 385 385 5.34% 5.54%

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 13 251 942888 6873.13 665 648 137.1
A 3 80 98232 711.82 665 648 137.1
A 1 162 19760 139.41 665 648 137.1
B 4 239 572120 4048.28 728 710 141.1
B 0 214 69456 487.05 728 710 141.1
B 11 51 45273 315.72 728 710 141.1
C 14 234 29820 170.08 733 738 171.0
C 13 61 5441 27.5 733 738 171.0
C 14 67 2878 12.52 733 738 171.0
D 1 52 569545 3046.5 774 752 186.7
D 13 106 384758 2056.77 774 752 186.7
D 8 195 240044 1281.67 774 752 186.7

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