ASTROSAT CZTI

Data Quality Report

Orbit 38114

Creation date: 2024-06-27T21:48:33.566743
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/AS1A11_065T21_9000005364_38114cztM0_level2.fits modeM0/AS1A11_065T21_9000005364_38114cztM0_level2_quad_clean.evt
Size (bytes)315,907,20096,782,400
Size301.3 MB 92.3 MB
Events in quadrant A2,894,885659,890
Events in quadrant B2,748,161669,049
Events in quadrant C2,605,357654,904
Events in quadrant D3,053,330594,340

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0320
C0320
D0330

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0116693
B0113262
C0106792
D0124542

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5032330.655803%
B50321152.285374%
C5032130.258347%
D5032240.476948%

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 7095 5033 22 22 0.31% 0.44%
B 7095 5033 73 73 1.03% 1.45%
C 7095 5033 10 10 0.14% 0.20%
D 7095 5033 17 17 0.24% 0.34%

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 345615 2852.61 605 597 120.9
A 12 16 115602 950.86 605 597 120.9
A 9 143 35322 287.11 605 597 120.9
B 0 229 243819 2130.36 600 586 114.2
B 5 172 96657 841.44 600 586 114.2
B 15 85 20143 171.29 600 586 114.2
C 15 214 210397 1538.07 595 601 136.4
C 0 239 36804 265.41 595 601 136.4
C 0 10 14062 98.69 595 601 136.4
D 12 235 649747 4590.16 584 569 141.4
D 13 249 32123 223.11 584 569 141.4
D 13 171 31164 216.33 584 569 141.4

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