ASTROSAT CZTI

Data Quality Report

Orbit 47218

Creation date: 2024-06-27T23:33:00.416434
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_019T01_9000006302_47218cztM0_level2.fits modeM0/AS1A13_019T01_9000006302_47218cztM0_level2_quad_clean.evt
Size (bytes)256,256,64059,158,080
Size244.4 MB 56.4 MB
Events in quadrant A4,082,605392,542
Events in quadrant B1,883,304402,852
Events in quadrant C1,552,957380,670
Events in quadrant D1,676,502351,653

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0151370
B080320
C074940
D077510

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0760
B0760
C0760
D0760

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3721300.806235%
B3721160.429992%
C372210.026867%
D3722100.268673%

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 3721 3721 20 20 0.54% 0.54%
B 3721 3721 9 9 0.24% 0.24%
C 3722 3722 0 0 0.00% 0.00%
D 3722 3722 14 14 0.38% 0.38%

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 2104506 25161.27 395 386 83.6
A 9 191 383700 4583.71 395 386 83.6
A 15 235 46925 556.52 395 386 83.6
B 0 190 114525 1430.41 395 383 79.8
B 5 171 35471 439.72 395 383 79.8
B 15 201 30712 380.08 395 383 79.8
C 14 254 22006 232.93 389 390 92.8
C 0 207 5295 52.85 389 390 92.8
C 14 67 5036 50.06 389 390 92.8
D 12 233 38312 378.9 393 380 100.1
D 5 32 24239 238.32 393 380 100.1
D 2 249 22195 217.91 393 380 100.1

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