ASTROSAT CZTI

Data Quality Report

Orbit 48014

Creation date: 2024-08-14T10:55:05.224801
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_218T01_9000006386_48014cztM0_level2.fits modeM0/AS1T05_218T01_9000006386_48014cztM0_level2_quad_clean.evt
Size (bytes)1,282,334,400263,992,320
Size1.2 GB 251.8 MB
Events in quadrant A19,726,2221,573,807
Events in quadrant B7,880,4901,881,506
Events in quadrant C7,839,3621,772,851
Events in quadrant D10,722,8651,605,625

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03420
B03420
C03420
D03420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0701443
B0353583
C0357533
D0442143

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0310
B0310
C0310
D0310

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A16814212412.632330%
B168151530.909902%
C168151240.737437%
D168152331.385668%

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 19944 16817 1604 1604 8.04% 9.54%
B 19945 16818 12 12 0.06% 0.07%
C 19945 16818 48 48 0.24% 0.29%
D 19945 16818 159 159 0.80% 0.95%

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 9304212 25506.55 1758 1721 364.7
A 0 31 3533626 9684.15 1758 1721 364.7
A 13 248 54502 144.72 1758 1721 364.7
B 0 200 211569 572.13 1870 1811 366.6
B 0 198 55333 145.99 1870 1811 366.6
B 7 221 54867 144.71 1870 1811 366.6
C 14 254 286532 660.16 1837 1845 431.2
C 12 2 263258 606.19 1837 1845 431.2
C 14 67 57152 128.25 1837 1845 431.2
D 10 204 2387591 5292.54 1816 1762 450.8
D 2 249 504620 1115.5 1816 1762 450.8
D 12 2 197143 433.42 1816 1762 450.8

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