ASTROSAT CZTI

Data Quality Report

Orbit 44080

Creation date: 2024-06-27T22:59:08.233678
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/AS1A13_029T01_9000005940_44080cztM0_level2.fits modeM0/AS1A13_029T01_9000005940_44080cztM0_level2_quad_clean.evt
Size (bytes)411,252,480106,634,880
Size392.2 MB 101.7 MB
Events in quadrant A4,038,278724,855
Events in quadrant B2,857,902753,033
Events in quadrant C2,858,296700,875
Events in quadrant D4,974,576606,663

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0162721
B0129281
C0131131
D0193421

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6353691.086101%
B6354460.723953%
C6354250.393453%
D63545228.215297%

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 7458 6354 7 7 0.09% 0.11%
B 7459 6355 0 0 0.00% 0.00%
C 7459 6355 4 4 0.05% 0.06%
D 7459 6355 419 419 5.62% 6.59%

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 1081407 7280.45 723 710 148.4
A 7 3 93183 622.97 723 710 148.4
A 2 79 20391 132.59 723 710 148.4
B 12 111 18876 127.36 725 703 142.7
B 14 111 17349 116.66 725 703 142.7
B 11 111 17042 114.51 725 703 142.7
C 14 254 78837 470.7 702 706 166.0
C 3 233 17090 98.71 702 706 166.0
C 2 14 9738 54.41 702 706 166.0
D 1 52 1205876 7136.47 672 652 168.9
D 13 249 749477 4434.0 672 652 168.9
D 5 235 290941 1718.88 672 652 168.9

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