ASTROSAT CZTI

Data Quality Report

Orbit 42443

Creation date: 2024-06-27T22:40:14.234544
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_001T10_9000005806_42443cztM0_level2.fits modeM0/AS1C07_001T10_9000005806_42443cztM0_level2_quad_clean.evt
Size (bytes)394,369,92082,572,480
Size376.1 MB 78.7 MB
Events in quadrant A2,836,916597,867
Events in quadrant B5,856,153415,092
Events in quadrant C2,463,817581,757
Events in quadrant D3,031,956537,683

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0310
B0320
C0320
D0320

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0114722
B0209772
C0106712
D0126612

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5249120.228615%
B5249174333.206325%
C524880.152439%
D5248731.391006%

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 7100 5250 2 2 0.03% 0.04%
B 7100 5250 1415 1415 19.93% 26.95%
C 7099 5249 5 5 0.07% 0.10%
D 7099 5249 58 58 0.82% 1.10%

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 570750 4777.7 580 569 119.3
A 13 254 9754 76.96 580 569 119.3
A 14 223 9073 71.26 580 569 119.3
B 0 186 3836273 42756.84 468 455 89.7
B 4 141 41237 454.59 468 455 89.7
B 5 255 35526 390.93 468 455 89.7
C 15 214 225895 1742.54 556 560 129.3
C 5 250 27757 210.32 556 560 129.3
C 14 254 19352 145.32 556 560 129.3
D 2 120 147308 1082.93 559 544 135.5
D 1 52 145338 1068.39 559 544 135.5
D 13 171 125314 920.64 559 544 135.5

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