ASTROSAT CZTI

Data Quality Report

Orbit 28328

Creation date: 2024-06-27T19:50:32.820792
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_116T01_9000004082_28328cztM0_level2.evt modeM0/AS1A10_116T01_9000004082_28328cztM0_level2_quad_clean.evt
Size (bytes)529,640,64096,949,440
Size505.1 MB 92.5 MB
Events in quadrant A3,295,296630,540
Events in quadrant B3,633,519656,611
Events in quadrant C3,918,244615,774
Events in quadrant D4,756,665583,819

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0190
C0190
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136070
B0145870
C0156990
D0183130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6442430.667495%
B64421011.567836%
C64421602.483701%
D64422774.299907%

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 7757 6443 0 0 0.00% 0.00%
B 7757 6443 8 8 0.10% 0.12%
C 7757 6442 6 6 0.08% 0.09%
D 7757 6443 202 202 2.60% 3.14%

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 11162 61.2 852 836 168.7
A 1 113 7969 42.27 852 836 168.7
A 3 137 7868 41.67 852 836 168.7
B 10 245 177148 1095.16 861 843 161.0
B 10 246 52066 318.18 861 843 161.0
B 12 111 19263 114.42 861 843 161.0
C 3 233 544753 2829.36 831 837 192.2
C 14 238 135858 702.36 831 837 192.2
C 13 61 5637 24.97 831 837 192.2
D 1 52 1327461 6845.48 817 798 193.8
D 8 195 174086 894.15 817 798 193.8
D 7 238 95054 486.35 817 798 193.8

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