ASTROSAT CZTI

Data Quality Report

Orbit 38216

Creation date: 2024-06-27T21:49:53.055138
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/AS1A07_145T01_9000005370_38216cztM0_level2.fits modeM0/AS1A07_145T01_9000005370_38216cztM0_level2_quad_clean.evt
Size (bytes)335,105,28097,971,840
Size319.6 MB 93.4 MB
Events in quadrant A2,869,424661,711
Events in quadrant B2,628,109692,581
Events in quadrant C3,236,745651,836
Events in quadrant D3,262,491594,428

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0350
B0350
C0350
D0360

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0116213
B0109192
C0126842
D0131532

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5234180.343905%
B5234180.343905%
C52341362.598395%
D52341723.286206%

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 7357 5235 12 12 0.16% 0.23%
B 7357 5235 9 9 0.12% 0.17%
C 7357 5235 106 106 1.44% 2.02%
D 7357 5235 148 148 2.01% 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 10 83 367308 2940.03 620 609 124.7
A 12 189 45506 359.96 620 609 124.7
A 13 248 15771 121.56 620 609 124.7
B 0 183 47255 397.96 625 610 117.2
B 5 172 44954 378.33 625 610 117.2
B 0 229 42025 353.34 625 610 117.2
C 14 254 301456 2132.99 609 614 141.0
C 9 236 238548 1686.97 609 614 141.0
C 15 214 216140 1528.09 609 614 141.0
D 13 138 432365 2910.04 605 589 148.4
D 13 249 103954 696.65 605 589 148.4
D 10 118 100904 676.09 605 589 148.4

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