ASTROSAT CZTI

Data Quality Report

Orbit 43609

Creation date: 2024-06-27T22:53:38.747403
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_9000005890_43609cztM0_level2.fits modeM0/AS1C07_001T10_9000005890_43609cztM0_level2_quad_clean.evt
Size (bytes)2,564,159,040155,494,080
Size2.4 GB 148.3 MB
Events in quadrant A11,113,9651,515,675
Events in quadrant B12,867,3421,501,760
Events in quadrant C37,009,983244,878
Events in quadrant D32,836,067452,128

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02860
B02860
C02860
D02860

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B050
C050
D050

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0425323
B0480883
C01196503
D01071984

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1417610887.674944%
B14176193113.621614%
C141761417299.971783%
D141751359495.901235%

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 14296 14178 792 792 5.54% 5.59%
B 14296 14179 1044 1044 7.30% 7.36%
C 14295 14175 13752 13752 96.20% 97.02%
D 14294 14174 11407 11407 79.80% 80.48%

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 2289680 7197.39 1546 1510 317.9
A 10 83 1626130 5110.21 1546 1510 317.9
A 15 223 449126 1407.97 1546 1510 317.9
B 4 206 3465316 12060.88 1511 1467 287.2
B 5 235 2290607 7970.63 1511 1467 287.2
B 4 171 310422 1075.76 1511 1467 287.2
C 15 142 23174551 357501.89 278 279 64.8
C 15 174 6729763 103813.54 278 279 64.8
C 15 126 4636336 71518.93 278 279 64.8
D 4 212 13600671 80029.59 571 552 169.9
D 4 216 6306152 37105.16 571 552 169.9
D 8 48 2235515 13151.59 571 552 169.9

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