ASTROSAT CZTI

Data Quality Report

Orbit 15037

Creation date: 2024-06-27T17:02:52.326841
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/AS1A04_218T03_9000002214_15037cztM0_level2.evt modeM0/AS1A04_218T03_9000002214_15037cztM0_level2_quad_clean.evt
Size (bytes)204,986,88061,090,560
Size195.5 MB 58.3 MB
Events in quadrant A1,529,960407,198
Events in quadrant B1,539,151420,376
Events in quadrant C1,542,335413,618
Events in quadrant D1,391,781396,198

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0600
B0600
C0600
D0600

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A064151
B066071
C064321
D061941

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A298160.201275%
B2981200.670916%
C298160.201275%
D298110.033546%

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 2982 2982 0 0 0.00% 0.00%
B 2982 2982 10 10 0.34% 0.34%
C 2982 2982 0 0 0.00% 0.00%
D 2982 2982 1 1 0.03% 0.03%

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 1 162 47421 637.86 363 357 73.8
A 1 178 23883 318.85 363 357 73.8
A 12 189 22027 293.69 363 357 73.8
B 10 16 67920 965.82 368 359 70.0
B 0 229 23137 325.62 368 359 70.0
B 4 173 8369 114.5 368 359 70.0
C 3 233 119740 1406.07 364 367 84.9
C 13 61 2453 24.57 364 367 84.9
C 3 232 1457 12.84 364 367 84.9
D 13 249 14263 159.22 360 351 87.4
D 10 70 11203 124.2 360 351 87.4
D 2 234 9268 102.05 360 351 87.4

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