ASTROSAT CZTI

Data Quality Report

Orbit 30638

Creation date: 2024-06-27T20:18:00.729280
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_055T01_9000004414_30638cztM0_level2.evt modeM0/AS1A10_055T01_9000004414_30638cztM0_level2_quad_clean.evt
Size (bytes)230,584,32035,709,120
Size219.9 MB 34.1 MB
Events in quadrant A962,341252,092
Events in quadrant B1,452,838249,033
Events in quadrant C965,030237,716
Events in quadrant D3,470,662201,687

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A041131
B058141
C041431
D0116171

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0420
B0420
C0420
D0420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1919170.885878%
B1920150.781250%
C1920251.302083%
D192061231.875000%

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 2464 1920 2 2 0.08% 0.10%
B 2465 1921 0 0 0.00% 0.00%
C 2465 1921 4 4 0.16% 0.21%
D 2465 1921 640 640 25.96% 33.32%

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 54844 1134.19 231 228 48.2
A 8 192 7233 145.47 231 228 48.2
A 0 31 4861 96.21 231 228 48.2
B 6 159 532757 11159.43 229 223 47.7
B 0 229 7735 157.42 229 223 47.7
B 5 172 7553 153.6 229 223 47.7
C 15 208 47718 905.85 216 217 52.4
C 14 238 34520 654.16 216 217 52.4
C 0 10 15569 292.76 216 217 52.4
D 8 195 2168655 43645.38 200 194 49.7
D 12 33 371786 7479.16 200 194 49.7
D 1 52 85752 1722.06 200 194 49.7

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