ASTROSAT CZTI

Data Quality Report

Orbit 36273

Creation date: 2024-06-27T21:24:46.075837
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/AS1A10_071T35_9000005184_36273cztM0_level2.evt modeM0/AS1A10_071T35_9000005184_36273cztM0_level2_quad_clean.evt
Size (bytes)274,993,92041,595,840
Size262.3 MB 39.7 MB
Events in quadrant A1,732,115257,867
Events in quadrant B2,273,011256,517
Events in quadrant C1,876,473254,378
Events in quadrant D2,207,274242,176

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A073642
B090131
C076481
D088341

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0720
B0720
C0720
D0720

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A350460.171233%
B35041243.538813%
C3504361.027397%
D3504290.827626%

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 5358 3505 0 0 0.00% 0.00%
B 5358 3505 90 90 1.68% 2.57%
C 5358 3505 28 28 0.52% 0.80%
D 5358 3505 26 26 0.49% 0.74%

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 105728 1232.35 417 408 85.5
A 13 6 6331 69.3 417 408 85.5
A 13 254 5939 64.71 417 408 85.5
B 5 172 419857 5219.58 412 401 80.4
B 5 236 160394 1990.9 412 401 80.4
B 0 190 30761 377.79 412 401 80.4
C 15 214 144244 1507.56 406 408 95.4
C 0 10 106720 1114.27 406 408 95.4
C 0 207 42493 441.1 406 408 95.4
D 12 6 381092 3796.77 403 392 100.3
D 2 153 101084 1004.21 403 392 100.3
D 13 249 59187 586.37 403 392 100.3

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