ASTROSAT CZTI

Data Quality Report

Orbit 49729

Creation date: 2024-12-11T08:18:03.309335
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_233T01_9000006438_49729cztM0_level2.fits modeM0/AS1T05_233T01_9000006438_49729cztM0_level2_quad_clean.evt
Size (bytes)1,308,205,44050,483,520
Size1.2 GB 48.1 MB
Events in quadrant A19,290,839209,396
Events in quadrant B5,860,553719,225
Events in quadrant C6,269,8155,521
Events in quadrant D16,434,03872,532

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0623960
B0224170
C0239230
D0538550

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7342732599.768455%
B73435697.748876%
C73437343100.000000%
D73437343100.000000%

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 7341 7341 7083 7083 96.49% 96.49%
B 7343 7343 408 408 5.56% 5.56%
C 7342 7342 2 2 0.03% 0.03%
D 7343 7343 5432 5432 73.98% 73.98%

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 5195166 69156.99 252 244 75.1
A 0 98 4021585 53533.78 252 244 75.1
A 0 99 2096697 27908.87 252 244 75.1
B 10 128 971598 6025.61 751 729 161.1
B 10 44 277429 1717.31 751 729 161.1
B 10 251 248365 1536.93 751 729 161.1
C 15 180 1199421 65154.77 17 15 18.4
C 15 190 1187842 64525.77 17 15 18.4
C 15 163 618941 33621.63 17 15 18.4
D 7 61 3238572 53848.13 109 100 60.1
D 15 168 2559879 42563.07 109 100 60.1
D 15 40 1909108 31742.29 109 100 60.1

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