ASTROSAT CZTI

Data Quality Report

Orbit 05086

Creation date: 2024-06-27T14:51:07.236144
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/AS1G05_103T01_9000000642_05086cztM0_level2.evt modeM0/AS1G05_103T01_9000000642_05086cztM0_level2_quad_clean.evt
Size (bytes)652,682,88097,102,080
Size622.4 MB 92.6 MB
Events in quadrant A3,690,794618,641
Events in quadrant B3,852,423629,566
Events in quadrant C3,644,573617,618
Events in quadrant D8,044,227526,240

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01600
B01600
C01600
D01600

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0166449
B0168734
C0165072
D02930412

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A78782012.551409%
B78801882.385787%
C78811001.268875%
D7879161620.510217%

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 8216 7883 2 2 0.02% 0.03%
B 8216 7883 3 3 0.04% 0.04%
C 8216 7883 0 0 0.00% 0.00%
D 8216 7883 1212 1212 14.75% 15.37%

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 50 24556 121.69 947 927 194.2
A 13 251 10403 48.8 947 927 194.2
A 12 194 9606 44.7 947 927 194.2
B 0 219 48256 253.99 957 936 186.3
B 15 54 37705 197.36 957 936 186.3
B 15 204 33558 175.1 957 936 186.3
C 8 128 9365 38.84 925 931 217.1
C 1 16 7595 30.69 925 931 217.1
C 13 61 7414 29.86 925 931 217.1
D 12 22 3372633 16676.77 820 794 202.2
D 13 239 641266 3167.71 820 794 202.2
D 12 233 383242 1891.55 820 794 202.2

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