ASTROSAT CZTI

Data Quality Report

Orbit 04207

Creation date: 2024-06-27T14:38:48.551252
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_240T01_9000000536_04207cztM0_level2.evt modeM0/AS1G05_240T01_9000000536_04207cztM0_level2_quad_clean.evt
Size (bytes)465,387,84077,673,600
Size443.8 MB 74.1 MB
Events in quadrant A3,435,611481,200
Events in quadrant B3,557,484480,888
Events in quadrant C3,226,715475,542
Events in quadrant D3,425,739453,856

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01462026
B01492824
C01421823
D0150079

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66011281.939100%
B6602871.317782%
C6602811.226901%
D66082403.631961%

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 7582 6610 44 44 0.58% 0.67%
B 7582 6613 8 8 0.11% 0.12%
C 7582 6612 31 31 0.41% 0.47%
D 7581 6611 164 164 2.16% 2.48%

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 0 50 304328 1938.81 770 753 156.6
A 15 234 73684 465.78 770 753 156.6
A 13 14 32643 203.67 770 753 156.6
B 3 0 417587 2762.45 775 757 150.9
B 15 204 52278 341.44 775 757 150.9
B 15 54 16746 105.96 775 757 150.9
C 9 144 291130 1649.85 749 753 176.0
C 14 67 7122 36.18 749 753 176.0
C 13 61 6139 30.6 749 753 176.0
D 13 239 561594 3142.2 741 720 178.5
D 2 14 12608 66.6 741 720 178.5
D 13 223 11289 59.21 741 720 178.5

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