ASTROSAT CZTI

Data Quality Report

Orbit 15980

Creation date: 2024-06-27T17:16:02.470802
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/AS1T02_104T01_9000002356_15980cztM0_level2.evt modeM0/AS1T02_104T01_9000002356_15980cztM0_level2_quad_clean.evt
Size (bytes)230,250,24043,597,440
Size219.6 MB 41.6 MB
Events in quadrant A1,493,615283,491
Events in quadrant B1,618,048290,346
Events in quadrant C1,544,293278,950
Events in quadrant D2,113,439255,333

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0640
B0640
C0640
D0640

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A063102
B066691
C064881
D083411

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2960581.959459%
B2960822.770270%
C2960893.006757%
D296032410.945946%

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 4336 2962 0 0 0.00% 0.00%
B 4336 2961 2 2 0.05% 0.07%
C 4336 2962 0 0 0.00% 0.00%
D 4336 2962 189 189 4.36% 6.38%

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 0 226 3301 37.41 387 379 78.1
A 15 174 3122 35.12 387 379 78.1
A 12 194 2824 31.31 387 379 78.1
B 4 216 48339 647.39 388 380 74.1
B 10 245 17519 231.36 388 380 74.1
B 15 35 10095 131.14 388 380 74.1
C 14 238 57692 664.94 371 374 86.2
C 3 233 24497 279.85 371 374 86.2
C 4 238 9741 108.67 371 374 86.2
D 10 70 683777 7792.28 362 352 87.7
D 12 218 38387 433.67 362 352 87.7
D 2 234 12475 138.22 362 352 87.7

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