ASTROSAT CZTI

Data Quality Report

Orbit 30560

Creation date: 2024-06-27T20:16:58.460388
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_9000004400_30560cztM0_level2.evt modeM0/AS1A10_055T01_9000004400_30560cztM0_level2_quad_clean.evt
Size (bytes)559,728,000101,577,600
Size533.8 MB 96.9 MB
Events in quadrant A3,413,085670,395
Events in quadrant B5,589,331661,650
Events in quadrant C3,523,437633,660
Events in quadrant D3,954,471626,074

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145901
B0214641
C0147541
D0162371

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6952690.992520%
B69521842.646720%
C6952991.424051%
D6952911.308976%

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 7492 6953 3 3 0.04% 0.04%
B 7492 6953 30 30 0.40% 0.43%
C 7492 6953 0 0 0.00% 0.00%
D 7492 6953 61 61 0.81% 0.88%

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 12 96 48449 275.39 869 852 172.8
A 13 254 12679 68.43 869 852 172.8
A 8 192 12151 65.37 869 852 172.8
B 6 159 2017791 12337.67 853 832 163.5
B 5 255 139337 847.23 853 832 163.5
B 3 112 31817 189.53 853 832 163.5
C 3 233 168989 885.29 816 820 190.0
C 14 238 133397 697.93 816 820 190.0
C 2 114 16393 81.98 816 820 190.0
D 13 249 230360 1171.58 828 806 195.9
D 1 52 211978 1077.77 828 806 195.9
D 8 195 171261 869.96 828 806 195.9

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