ASTROSAT CZTI

Data Quality Report

Orbit 22410

Creation date: 2024-06-27T18:40:38.225496
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/AS1T03_156T01_9000003312_22410cztM0_level2.evt modeM0/AS1T03_156T01_9000003312_22410cztM0_level2_quad_clean.evt
Size (bytes)497,954,88083,741,760
Size474.9 MB 79.9 MB
Events in quadrant A3,335,532517,660
Events in quadrant B3,472,931523,857
Events in quadrant C3,398,817504,140
Events in quadrant D4,378,983483,341

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147752
B0149742
C0148332
D0179062

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7271610.838949%
B7272801.100110%
C7272961.320132%
D72711021.402833%

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 7866 7273 0 0 0.00% 0.00%
B 7867 7274 2 2 0.03% 0.03%
C 7867 7274 0 0 0.00% 0.00%
D 7866 7273 54 54 0.69% 0.74%

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 10418 55.53 863 844 172.4
A 3 137 7469 38.43 863 844 172.4
A 0 226 7299 37.44 863 844 172.4
B 0 228 22765 132.81 868 846 165.0
B 12 111 20243 117.53 868 846 165.0
B 11 111 17757 102.47 868 846 165.0
C 14 238 133602 671.03 837 843 197.8
C 13 61 5740 24.75 837 843 197.8
C 14 67 2096 6.33 837 843 197.8
D 1 52 545808 2689.08 836 812 202.7
D 12 227 292949 1441.44 836 812 202.7
D 13 249 175888 863.85 836 812 202.7

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