ASTROSAT CZTI

Data Quality Report

Orbit 29590

Creation date: 2024-06-27T20:05:48.760727
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_093T01_9000004266_29590cztM0_level2.evt modeM0/AS1A10_093T01_9000004266_29590cztM0_level2_quad_clean.evt
Size (bytes)639,524,16086,604,480
Size609.9 MB 82.6 MB
Events in quadrant A3,562,861566,892
Events in quadrant B4,656,821576,982
Events in quadrant C3,748,690531,313
Events in quadrant D6,927,762461,316

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0149101
B0184511
C0154271
D0251931

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A69761141.634174%
B69772243.210549%
C69772763.955855%
D6977108415.536764%

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 7611 6976 9 9 0.12% 0.13%
B 7612 6977 77 77 1.01% 1.10%
C 7612 6978 0 0 0.00% 0.00%
D 7612 6978 917 917 12.05% 13.14%

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 0 13 246849 1419.91 858 837 173.3
A 13 254 14548 79.14 858 837 173.3
A 3 137 8393 43.61 858 837 173.3
B 0 189 1007725 6221.33 849 825 161.8
B 15 33 252949 1557.8 849 825 161.8
B 5 172 33577 202.36 849 825 161.8
C 3 233 315920 1669.58 814 821 188.7
C 14 238 173536 915.15 814 821 188.7
C 14 254 61811 323.16 814 821 188.7
D 7 80 2743554 15029.77 770 748 182.5
D 13 153 365093 1996.5 770 748 182.5
D 8 195 305328 1669.01 770 748 182.5

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