ASTROSAT CZTI

Data Quality Report

Orbit 34303

Creation date: 2022-01-31T21:04:31.714858
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/AS1A11_047T07_9000004892_34303cztM0_level2.evt modeM0/AS1A11_047T07_9000004892_34303cztM0_level2_quad_clean.evt
Size (bytes)190,411,20029,260,800
Size181.6 MB 27.9 MB
Events in quadrant A1,168,606182,054
Events in quadrant B1,549,953180,507
Events in quadrant C1,241,442182,705
Events in quadrant D1,648,159174,030

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A049412
B061551
C051031
D065601

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0480
B0480
C0480
D0480

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A230410.043403%
B2304793.428819%
C230460.260417%
D2304321.388889%

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 4036 2305 0 0 0.00% 0.00%
B 4036 2305 42 42 1.04% 1.82%
C 4036 2305 3 3 0.07% 0.13%
D 4036 2305 27 27 0.67% 1.17%

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 7 16 14974 246.87 291 286 59.5
A 10 83 14138 232.82 291 286 59.5
A 13 6 9236 150.43 291 286 59.5
B 5 172 158274 2798.55 287 281 56.5
B 4 171 108444 1915.91 287 281 56.5
B 15 85 40940 720.2 287 281 56.5
C 15 214 99077 1471.82 283 285 67.1
C 0 10 26155 385.41 283 285 67.1
C 14 67 6637 94.63 283 285 67.1
D 8 195 194366 2762.68 279 271 70.3
D 12 235 111938 1589.43 279 271 70.3
D 1 3 67016 950.02 279 271 70.3

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