ASTROSAT CZTI

Data Quality Report

Orbit 10913

Creation date: 2024-06-27T16:05:33.462958
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/AS1A04_055T02_9000001576_10913cztM0_level2.evt modeM0/AS1A04_055T02_9000001576_10913cztM0_level2_quad_clean.evt
Size (bytes)442,923,840104,028,480
Size422.4 MB 99.2 MB
Events in quadrant A3,272,178701,919
Events in quadrant B3,762,708700,074
Events in quadrant C2,773,600692,138
Events in quadrant D3,216,913656,472

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132422
B0149631
C0118821
D0133541

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A57161192.081875%
B57162414.216235%
C5716631.102169%
D57161011.766970%

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 6996 5717 17 17 0.24% 0.30%
B 6996 5717 83 83 1.19% 1.45%
C 6996 5717 0 0 0.00% 0.00%
D 6996 5717 32 32 0.46% 0.56%

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 374868 2506.58 744 731 149.3
A 11 29 9729 60.28 744 731 149.3
A 15 223 7192 43.29 744 731 149.3
B 4 239 718711 5259.16 732 718 136.5
B 0 214 68893 499.37 732 718 136.5
B 10 245 46472 335.14 732 718 136.5
C 13 61 5289 28.27 709 713 161.9
C 14 234 2912 13.58 709 713 161.9
C 7 235 2331 10.0 709 713 161.9
D 13 152 112155 655.22 715 697 170.1
D 5 222 77151 449.44 715 697 170.1
D 1 52 64418 374.59 715 697 170.1

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