ASTROSAT CZTI

Data Quality Report

Orbit 43125

Creation date: 2024-06-27T22:48:19.921361
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/AS1T05_154T01_9000005850_43125cztM0_level2.fits modeM0/AS1T05_154T01_9000005850_43125cztM0_level2_quad_clean.evt
Size (bytes)283,996,80059,892,480
Size270.8 MB 57.1 MB
Events in quadrant A4,340,547333,825
Events in quadrant B1,662,806437,231
Events in quadrant C1,695,477408,129
Events in quadrant D2,520,674369,725

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0153341
B075831
C075521
D0101051

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0740
B0740
C0740
D0740

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B090
C090
D090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A374791024.286096%
B374730.080064%
C374740.106752%
D37471634.350147%

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 3747 3747 786 786 20.98% 20.98%
B 3747 3747 1 1 0.03% 0.03%
C 3747 3747 2 2 0.05% 0.05%
D 3747 3747 106 106 2.83% 2.83%

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 15 222 2220327 30312.06 353 346 73.2
A 10 83 347502 4740.14 353 346 73.2
A 15 237 331883 4526.87 353 346 73.2
B 0 229 51190 650.24 402 392 78.1
B 0 189 11862 146.82 402 392 78.1
B 5 255 11842 146.57 402 392 78.1
C 15 214 154062 1677.48 390 392 91.6
C 14 254 8325 86.6 390 392 91.6
C 5 250 5530 56.09 390 392 91.6
D 1 52 914646 9633.65 388 376 94.9
D 10 34 25211 261.69 388 376 94.9
D 12 6 23309 241.64 388 376 94.9

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