ASTROSAT CZTI

Data Quality Report

Orbit 29706

Creation date: 2024-06-27T20:07:02.262313
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/AS1A10_007T01_9000004276_29706cztM0_level2.evt modeM0/AS1A10_007T01_9000004276_29706cztM0_level2_quad_clean.evt
Size (bytes)596,736,00099,737,280
Size569.1 MB 95.1 MB
Events in quadrant A3,401,913633,649
Events in quadrant B5,688,426639,638
Events in quadrant C3,929,258635,057
Events in quadrant D4,568,371613,924

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147752
B0220412
C0161112
D0184392

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7158280.391171%
B71581722.402906%
C71581532.137469%
D71581502.095557%

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 7683 7159 0 0 0.00% 0.00%
B 7683 7159 9 9 0.12% 0.13%
C 7683 7159 6 6 0.08% 0.08%
D 7683 7159 108 108 1.41% 1.51%

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 13 254 14196 74.94 879 860 177.9
A 3 137 9225 47.01 879 860 177.9
A 0 226 7286 36.11 879 860 177.9
B 6 159 2075214 12179.16 876 852 170.3
B 0 229 144148 841.33 876 852 170.3
B 12 111 21020 118.41 876 852 170.3
C 3 233 395902 1945.02 857 864 203.1
C 14 238 139322 681.71 857 864 203.1
C 10 22 25607 121.83 857 864 203.1
D 8 195 800299 3885.57 856 833 205.8
D 7 238 228782 1107.88 856 833 205.8
D 2 250 139374 673.34 856 833 205.8

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