ASTROSAT CZTI

Data Quality Report

Orbit 48322

Creation date: 2024-09-07T11:34:43.742357
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_9000006422_48322cztM0_level2.fits modeM0/AS1A13_029T01_9000006422_48322cztM0_level2_quad_clean.evt
Size (bytes)573,384,960123,675,840
Size546.8 MB 117.9 MB
Events in quadrant A7,925,345826,733
Events in quadrant B4,038,147853,396
Events in quadrant C3,488,284810,609
Events in quadrant D5,168,439711,317

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0289900
B0172880
C0161350
D0210933

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A78011862.384310%
B7801901.153698%
C7801210.269196%
D77994675.987947%

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 7801 7801 16 16 0.21% 0.21%
B 7801 7801 31 31 0.40% 0.40%
C 7801 7801 9 9 0.12% 0.12%
D 7801 7800 300 300 3.85% 3.85%

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 4458366 24169.12 870 849 184.4
A 13 248 63019 337.09 870 849 184.4
A 0 247 38080 201.87 870 849 184.4
B 4 21 235218 1341.99 874 845 174.6
B 5 255 136369 775.99 874 845 174.6
B 0 200 94758 537.73 874 845 174.6
C 12 2 119709 586.44 857 861 202.7
C 1 16 11688 53.42 857 861 202.7
C 13 61 5680 23.78 857 861 202.7
D 12 233 1491401 6945.76 839 810 214.6
D 7 96 124256 575.23 839 810 214.6
D 13 29 109317 505.61 839 810 214.6

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