ASTROSAT CZTI

Data Quality Report

Orbit 42718

Creation date: 2024-06-27T22:43:24.705098
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/AS1A05_013T01_9000005822_42718cztM0_level2.fits modeM0/AS1A05_013T01_9000005822_42718cztM0_level2_quad_clean.evt
Size (bytes)305,568,00087,811,200
Size291.4 MB 83.7 MB
Events in quadrant A2,937,614593,961
Events in quadrant B2,423,786607,174
Events in quadrant C2,461,108573,295
Events in quadrant D3,081,590518,418

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0118642
B0108222
C0105622
D0128972

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0270
C0270
D0270

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5220180.344828%
B5220180.344828%
C522050.095785%
D52201703.256705%

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 7043 5221 11 11 0.16% 0.21%
B 7043 5221 12 12 0.17% 0.23%
C 7043 5221 0 0 0.00% 0.00%
D 7043 5221 154 154 2.19% 2.95%

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 554424 4637.32 580 570 119.4
A 12 189 52825 437.52 580 570 119.4
A 13 248 45448 375.76 580 570 119.4
B 5 255 61149 544.22 577 561 111.3
B 5 172 38122 337.38 577 561 111.3
B 0 230 16030 138.95 577 561 111.3
C 15 214 218889 1678.0 560 565 130.1
C 2 16 20739 155.05 560 565 130.1
C 8 79 17219 128.0 560 565 130.1
D 2 249 443719 3310.05 551 535 133.9
D 12 6 206889 1541.21 551 535 133.9
D 12 233 93527 694.54 551 535 133.9

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