ASTROSAT CZTI

Data Quality Report

Orbit 41070

Creation date: 2024-06-27T22:24:03.462497
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_093T02_9000005594_41070cztM0_level2.fits modeM0/AS1A12_093T02_9000005594_41070cztM0_level2_quad_clean.evt
Size (bytes)141,618,24040,760,640
Size135.1 MB 38.9 MB
Events in quadrant A1,279,300282,328
Events in quadrant B1,157,999286,063
Events in quadrant C1,195,308263,226
Events in quadrant D1,436,179244,028

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A051671
B048701
C047901
D056291

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0440
B0440
C0440
D0440

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A219870.318471%
B219820.090992%
C2198351.592357%
D2198743.366697%

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 2198 2198 1 1 0.05% 0.05%
B 2198 2198 0 0 0.00% 0.00%
C 2198 2198 31 31 1.41% 1.41%
D 2198 2198 59 59 2.68% 2.68%

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 222855 4053.07 267 263 54.9
A 2 79 9045 159.91 267 263 54.9
A 12 189 7004 122.74 267 263 54.9
B 0 229 124031 2376.49 260 253 52.1
B 15 32 12389 233.01 260 253 52.1
B 12 111 6129 112.82 260 253 52.1
C 15 214 94957 1544.26 258 260 61.3
C 0 10 88540 1439.62 258 260 61.3
C 14 254 5623 87.46 258 260 61.3
D 2 16 206705 3194.88 260 253 64.6
D 2 249 101454 1566.1 260 253 64.6
D 9 19 49321 759.34 260 253 64.6

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