ASTROSAT CZTI

Data Quality Report

Orbit 43958

Creation date: 2024-06-27T22:57:41.617698
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/AS1A13_065T02_9000005922_43958cztM0_level2.fits modeM0/AS1A13_065T02_9000005922_43958cztM0_level2_quad_clean.evt
Size (bytes)409,999,68051,307,200
Size391.0 MB 48.9 MB
Events in quadrant A6,734,504165,679
Events in quadrant B1,988,161410,415
Events in quadrant C2,391,407390,721
Events in quadrant D3,772,857323,980

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0740
B0740
C0740
D0740

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0225570
B083470
C096660
D0136870

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3711243665.642684%
B37111443.880356%
C37111744.688763%
D371156915.332794%

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 3710 3710 1435 1435 38.68% 38.68%
B 3710 3710 6 6 0.16% 0.16%
C 3710 3710 117 117 3.15% 3.15%
D 3710 3710 512 512 13.80% 13.80%

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 15 223 4484730 66855.11 317 309 67.1
A 14 238 486451 7247.55 317 309 67.1
A 10 83 380975 5675.08 317 309 67.1
B 0 200 46487 508.16 447 431 90.6
B 5 172 41525 453.41 447 431 90.6
B 4 158 38637 421.54 447 431 90.6
C 15 158 460690 4415.24 435 436 104.2
C 14 254 140018 1339.02 435 436 104.2
C 15 157 53172 505.9 435 436 104.2
D 1 52 631994 5771.41 423 408 109.4
D 12 17 502056 4584.04 423 408 109.4
D 12 233 364171 3324.05 423 408 109.4

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