ASTROSAT CZTI

Data Quality Report

Orbit 42574

Creation date: 2024-06-27T22:41:47.688851
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_9000005814_42574cztM0_level2.fits modeM0/AS1C07_001T10_9000005814_42574cztM0_level2_quad_clean.evt
Size (bytes)316,984,32090,760,320
Size302.3 MB 86.6 MB
Events in quadrant A2,905,733612,744
Events in quadrant B2,557,741619,767
Events in quadrant C2,503,745598,027
Events in quadrant D3,352,168545,057

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0118252
B0113232
C0108472
D0137722

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0250
C0250
D0250

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5315170.319849%
B5315621.166510%
C531580.150517%
D53151392.615240%

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 7256 5316 5 5 0.07% 0.09%
B 7256 5316 43 43 0.59% 0.81%
C 7256 5316 2 2 0.03% 0.04%
D 7256 5316 134 134 1.85% 2.52%

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 554138 4636.53 585 574 119.4
A 13 248 74769 621.44 585 574 119.4
A 2 79 14726 118.53 585 574 119.4
B 5 172 183465 1637.49 580 563 111.7
B 0 245 42010 371.07 580 563 111.7
B 0 189 23395 204.41 580 563 111.7
C 15 214 220833 1697.42 564 568 129.8
C 7 220 53805 410.26 564 568 129.8
C 5 250 14034 103.77 564 568 129.8
D 1 52 396755 2898.47 559 543 136.7
D 12 6 376913 2753.32 559 543 136.7
D 5 157 103268 751.48 559 543 136.7

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