ASTROSAT CZTI

Data Quality Report

Orbit 42092

Creation date: 2024-06-27T22:36:45.583803
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/AS1A12_088T01_9000005742_42092cztM0_level2.fits modeM0/AS1A12_088T01_9000005742_42092cztM0_level2_quad_clean.evt
Size (bytes)210,018,24056,998,080
Size200.3 MB 54.4 MB
Events in quadrant A2,305,934380,578
Events in quadrant B1,487,154388,393
Events in quadrant C1,555,133370,845
Events in quadrant D2,151,426337,850

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A092520
B070770
C070310
D088680

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0700
B0700
C0700
D0700

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3505100.285307%
B350620.057045%
C350600.000000%
D3506872.481460%

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 3505 3505 0 0 0.00% 0.00%
B 3506 3506 2 2 0.06% 0.06%
C 3506 3506 0 0 0.00% 0.00%
D 3506 3506 99 99 2.82% 2.82%

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 15 222 443410 5539.11 376 367 80.0
A 10 83 285763 3568.14 376 367 80.0
A 15 223 90669 1128.99 376 367 80.0
B 5 255 26237 346.71 370 359 74.6
B 12 111 9008 115.88 370 359 74.6
B 11 111 8376 107.41 370 359 74.6
C 15 214 143585 1662.42 361 363 86.2
C 12 249 3985 42.04 361 363 86.2
C 13 61 2423 23.91 361 363 86.2
D 1 52 354095 3951.55 361 352 89.5
D 10 199 160849 1792.86 361 352 89.5
D 12 6 133486 1487.2 361 352 89.5

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