ASTROSAT CZTI

Data Quality Report

Orbit 05185

Creation date: 2024-06-27T14:52:25.390195
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/AS1G05_214T01_9000000652_05185cztM0_level2.evt modeM0/AS1G05_214T01_9000000652_05185cztM0_level2_quad_clean.evt
Size (bytes)215,475,84030,997,440
Size205.5 MB 29.6 MB
Events in quadrant A1,524,738179,637
Events in quadrant B1,580,517182,005
Events in quadrant C1,489,011182,987
Events in quadrant D1,715,588169,915

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0640
B0640
C0640
D0640

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A066041
B067181
C066271
D073191

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A31451595.055644%
B31451635.182830%
C31451243.942766%
D31451996.327504%

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 3915 3145 0 0 0.00% 0.00%
B 3915 3145 4 4 0.10% 0.13%
C 3915 3146 0 0 0.00% 0.00%
D 3915 3145 58 58 1.48% 1.84%

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 0 247 15472 184.25 387 377 81.9
A 0 50 8683 101.39 387 377 81.9
A 0 226 5163 58.42 387 377 81.9
B 4 80 38279 492.35 388 378 77.0
B 15 54 10313 129.06 388 378 77.0
B 5 70 10258 128.35 388 378 77.0
C 1 16 19754 216.67 376 377 89.4
C 13 61 3072 30.13 376 377 89.4
C 12 4 1125 8.36 376 377 89.4
D 2 14 165524 1759.36 375 361 93.9
D 2 33 72612 769.64 375 361 93.9
D 13 105 28840 303.37 375 361 93.9

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