ASTROSAT CZTI

Data Quality Report

Orbit 14037

Creation date: 2024-06-27T16:49:28.948681
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/AS1G08_002T01_9000002072_14037cztM0_level2.evt modeM0/AS1G08_002T01_9000002072_14037cztM0_level2_quad_clean.evt
Size (bytes)472,786,56083,577,600
Size450.9 MB 79.7 MB
Events in quadrant A3,316,522524,374
Events in quadrant B3,382,516527,272
Events in quadrant C3,342,457520,288
Events in quadrant D3,835,451505,416

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0200

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139653
B0140882
C0138952
D0154332

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6502991.522608%
B6502991.522608%
C6502761.168871%
D65021312.014765%

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 7628 6504 0 0 0.00% 0.00%
B 7628 6504 3 3 0.04% 0.05%
C 7628 6504 0 0 0.00% 0.00%
D 7628 6504 31 31 0.41% 0.48%

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 1 162 24945 139.24 851 834 173.2
A 1 178 8659 45.19 851 834 173.2
A 1 161 7645 39.33 851 834 173.2
B 0 230 55724 343.88 839 820 159.7
B 10 244 21966 132.44 839 820 159.7
B 12 111 19278 115.61 839 820 159.7
C 3 233 108636 568.32 821 828 189.7
C 14 220 32913 169.14 821 828 189.7
C 13 61 5895 26.71 821 828 189.7
D 1 52 332692 1706.72 817 798 194.5
D 10 157 212934 1090.88 817 798 194.5
D 8 195 123938 633.23 817 798 194.5

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