ASTROSAT CZTI

Data Quality Report

Orbit 39076

Creation date: 2024-06-27T22:00:07.401263
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/AS1T05_067T01_9000005432_39076cztM0_level2.fits modeM0/AS1T05_067T01_9000005432_39076cztM0_level2_quad_clean.evt
Size (bytes)525,934,080103,668,480
Size501.6 MB 98.9 MB
Events in quadrant A4,044,251716,503
Events in quadrant B3,346,772734,782
Events in quadrant C5,277,159648,056
Events in quadrant D6,298,493588,865

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0162893
B0142132
C0199832
D0231682

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0280
B0280
C0280
D0280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6472440.679852%
B6472130.200865%
C64724697.246601%
D64726439.935105%

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 9128 6474 25 25 0.27% 0.39%
B 9128 6474 1 1 0.01% 0.02%
C 9128 6474 428 428 4.69% 6.61%
D 9128 6474 554 554 6.07% 8.56%

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 15 222 669331 4540.87 726 714 147.2
A 10 83 468315 3175.68 726 714 147.2
A 9 143 33739 224.29 726 714 147.2
B 5 184 424404 3013.44 722 703 140.6
B 0 213 45873 321.26 722 703 140.6
B 12 111 17961 122.74 722 703 140.6
C 15 208 1515437 9410.28 682 687 161.0
C 3 233 818087 5078.04 682 687 161.0
C 15 214 266180 1649.36 682 687 161.0
D 12 235 1917330 11736.49 670 653 163.3
D 2 249 1013127 6199.73 670 653 163.3
D 12 227 287170 1754.44 670 653 163.3

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