ASTROSAT CZTI

Data Quality Report

Orbit 43806

Creation date: 2024-06-27T22:55:59.316487
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_018T01_9000005906_43806cztM0_level2.fits modeM0/AS1A13_018T01_9000005906_43806cztM0_level2_quad_clean.evt
Size (bytes)664,329,600105,503,040
Size633.6 MB 100.6 MB
Events in quadrant A5,186,139748,365
Events in quadrant B3,512,312812,000
Events in quadrant C8,745,234590,256
Events in quadrant D6,666,481610,158

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0199591
B0142771
C0301461
D0240032

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62134857.806213%
B62141402.252977%
C6214186730.045060%
D6213102716.529857%

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 7398 6213 240 240 3.24% 3.86%
B 7399 6214 24 24 0.32% 0.39%
C 7399 6214 1632 1632 22.06% 26.26%
D 7398 6213 903 903 12.21% 14.53%

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 923356 5747.6 775 761 160.5
A 13 248 664693 4136.18 775 761 160.5
A 15 223 469937 2922.88 775 761 160.5
B 0 200 252913 1642.63 788 766 153.5
B 0 183 34823 221.87 788 766 153.5
B 1 207 21467 134.86 788 766 153.5
C 15 174 5176044 31807.52 700 705 162.7
C 15 190 420149 2577.89 700 705 162.7
C 15 158 176257 1078.94 700 705 162.7
D 12 33 2102650 11560.41 724 705 181.8
D 1 52 419094 2301.08 724 705 181.8
D 5 222 318741 1749.15 724 705 181.8

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