ASTROSAT CZTI

Data Quality Report

Orbit 37564

Creation date: 2024-06-27T21:41:34.914970
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/AS1C07_001T11_9000005336_37564cztM0_level2.evt modeM0/AS1C07_001T11_9000005336_37564cztM0_level2_quad_clean.evt
Size (bytes)446,817,60094,530,240
Size426.1 MB 90.2 MB
Events in quadrant A2,570,747637,552
Events in quadrant B2,725,924655,433
Events in quadrant C2,815,532658,558
Events in quadrant D5,092,806573,191

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0106983
B0111832
C0112312
D0184282

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0320
C0320
D0330

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4808270.561564%
B48081252.599834%
C48081082.246256%
D480885617.803661%

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 6929 4809 22 22 0.32% 0.46%
B 6929 4809 64 64 0.92% 1.33%
C 6929 4809 103 103 1.49% 2.14%
D 6929 4809 900 900 12.99% 18.71%

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 299416 2685.46 550 540 111.3
A 9 143 47064 418.03 550 540 111.3
A 4 0 34992 309.56 550 540 111.3
B 5 172 156074 1498.05 553 539 103.8
B 5 255 65412 624.83 553 539 103.8
B 0 155 51657 492.35 553 539 103.8
C 14 254 292845 2308.34 548 552 126.6
C 15 214 220321 1735.59 548 552 126.6
C 0 10 157128 1236.53 548 552 126.6
D 12 235 2147282 17218.34 507 493 124.7
D 2 249 309136 2475.47 507 493 124.7
D 2 153 117370 937.41 507 493 124.7

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