ASTROSAT CZTI

Data Quality Report

Orbit 43289

Creation date: 2024-06-27T22:50:12.918122
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/AS1A12_089T01_9000005864_43289cztM0_level2.fits modeM0/AS1A12_089T01_9000005864_43289cztM0_level2_quad_clean.evt
Size (bytes)357,929,28087,543,360
Size341.3 MB 83.5 MB
Events in quadrant A3,995,076579,348
Events in quadrant B3,114,571579,831
Events in quadrant C2,562,468588,756
Events in quadrant D3,163,785531,482

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0310
B0320
C0320
D0320

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0153612
B0128242
C0109172
D0130332

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A53102063.879473%
B53102865.386064%
C5310120.225989%
D53101172.203390%

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 7042 5311 185 185 2.63% 3.48%
B 7042 5311 252 252 3.58% 4.74%
C 7042 5311 6 6 0.09% 0.11%
D 7042 5311 120 120 1.70% 2.26%

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 608128 5070.63 581 570 119.8
A 15 237 530669 4424.16 581 570 119.8
A 7 3 382778 3189.88 581 570 119.8
B 5 172 692061 6221.22 567 551 111.2
B 0 186 71900 641.89 567 551 111.2
B 0 189 50944 453.36 567 551 111.2
C 15 214 228488 1674.78 573 576 136.1
C 14 254 72879 531.31 573 576 136.1
C 3 233 26393 189.71 573 576 136.1
D 1 52 371719 2636.97 571 556 140.8
D 12 233 259425 1839.17 571 556 140.8
D 13 249 83673 590.52 571 556 140.8

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