ASTROSAT CZTI

Data Quality Report

Orbit 46099

Creation date: 2024-06-27T23:19:13.993024
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/AS1C07_001T10_9000006170_46099cztM0_level2.fits modeM0/AS1C07_001T10_9000006170_46099cztM0_level2_quad_clean.evt
Size (bytes)439,447,680110,370,240
Size419.1 MB 105.3 MB
Events in quadrant A5,704,060710,177
Events in quadrant B3,193,825767,168
Events in quadrant C3,136,620748,036
Events in quadrant D3,732,602667,391

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0214872
B0140852
C0140292
D0157052

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0200
C0200
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64342113.279453%
B6434911.414361%
C6434721.119055%
D64341211.880634%

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 7599 6434 45 45 0.59% 0.70%
B 7599 6434 11 11 0.14% 0.17%
C 7599 6434 33 33 0.43% 0.51%
D 7599 6434 79 79 1.04% 1.23%

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 10 83 2901135 19934.44 707 693 145.5
A 9 191 43159 291.86 707 693 145.5
A 7 3 9777 62.43 707 693 145.5
B 0 190 189796 1351.75 723 700 139.9
B 8 234 58465 412.93 723 700 139.9
B 5 185 35131 246.13 723 700 139.9
C 14 254 254802 1506.27 719 722 168.7
C 3 233 42044 244.97 719 722 168.7
C 4 0 25252 145.42 719 722 168.7
D 1 52 381899 2191.18 704 683 174.0
D 5 235 137603 787.0 704 683 174.0
D 7 39 134512 769.23 704 683 174.0

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