ASTROSAT CZTI

Data Quality Report

Orbit 40798

Creation date: 2024-06-27T22:20:38.597158
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/AS1A12_095T02_9000005568_40798cztM0_level2.fits modeM0/AS1A12_095T02_9000005568_40798cztM0_level2_quad_clean.evt
Size (bytes)4,726,080538,560
Size4.5 MB 525.9 KB
Events in quadrant A42,598665
Events in quadrant B36,558612
Events in quadrant C38,992591
Events in quadrant D46,700508

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01690
B01590
C01590
D01860

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7900.000000%
B7900.000000%
C7900.000000%
D7900.000000%

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 79 79 0 0 0.00% 0.00%
B 79 79 0 0 0.00% 0.00%
C 79 79 0 0 0.00% 0.00%
D 79 79 0 0 0.00% 0.00%

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 5440 1547.34 8 8 3.5
A 6 10 1203 340.4 8 8 3.5
A 13 248 1090 308.21 8 8 3.5
B 0 230 348 96.4 8 8 3.5
B 15 54 320 88.46 8 8 3.5
B 0 190 248 68.05 8 8 3.5
C 15 214 3228 858.48 9 9 3.7
C 13 61 74 17.33 9 9 3.7
C 3 233 42 8.8 9 9 3.7
D 9 64 6010 1623.39 8 8 3.7
D 2 153 5913 1597.16 8 8 3.7
D 2 234 388 102.78 8 8 3.7

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