ASTROSAT CZTI

Data Quality Report

Orbit 13720

Creation date: 2024-06-27T16:44:54.846883
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_036T01_9000002034_13720cztM0_level2.evt modeM0/AS1G08_036T01_9000002034_13720cztM0_level2_quad_clean.evt
Size (bytes)517,824,000109,203,840
Size493.8 MB 104.1 MB
Events in quadrant A3,259,963723,308
Events in quadrant B3,492,546760,346
Events in quadrant C3,379,713710,210
Events in quadrant D5,105,552656,266

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137343
B0144122
C0139682
D0194822

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6561200.304832%
B6561370.563938%
C6561120.182899%
D65612954.496266%

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 7847 6563 0 0 0.00% 0.00%
B 7847 6563 2 2 0.03% 0.03%
C 7847 6563 0 0 0.00% 0.00%
D 7847 6563 229 229 2.92% 3.49%

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 0 226 7347 38.37 845 830 169.8
A 12 194 6354 32.52 845 830 169.8
A 1 162 5346 26.59 845 830 169.8
B 10 244 40978 254.12 858 839 158.0
B 8 250 28417 174.59 858 839 158.0
B 0 219 24049 146.94 858 839 158.0
C 3 233 116942 603.61 836 843 192.3
C 13 61 5972 26.67 836 843 192.3
C 12 4 3071 11.58 836 843 192.3
D 5 222 1777971 9314.22 809 788 190.8
D 8 195 171989 897.26 809 788 190.8
D 10 157 51282 264.64 809 788 190.8

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