ASTROSAT CZTI

Data Quality Report

Orbit 01215

Creation date: 2024-06-27T14:09:15.807405
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/AS1G04_007T02_9000000220_01215cztM0_level2.evt modeM0/AS1G04_007T02_9000000220_01215cztM0_level2_quad_clean.evt
Size (bytes)892,595,52091,013,760
Size851.2 MB 86.8 MB
Events in quadrant A6,649,539603,915
Events in quadrant B6,988,133608,500
Events in quadrant C6,452,623580,650
Events in quadrant D6,565,953567,362

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0237403
B0247832
C0231892
D0235422

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A566460.105932%
B5664260.459040%
C566450.088277%
D5664300.529661%

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 6969 5666 122 122 1.75% 2.15%
B 6969 5664 191 191 2.74% 3.37%
C 6969 5666 108 108 1.55% 1.91%
D 6969 5666 320 320 4.59% 5.65%

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 12 243 30004 69.05 1717 1727 409.5
A 4 32 26289 59.98 1717 1727 409.5
A 11 79 7230 13.44 1717 1727 409.5
B 14 53 92087 218.02 1770 1778 414.2
B 12 52 54972 128.42 1770 1778 414.2
B 7 221 33522 76.64 1770 1778 414.2
C 15 241 294017 676.83 1561 1610 432.0
C 3 79 20910 44.67 1561 1610 432.0
C 3 111 20665 44.11 1561 1610 432.0
D 1 239 568665 1203.29 1531 1588 471.3
D 1 83 75181 156.16 1531 1588 471.3
D 10 84 69941 145.04 1531 1588 471.3

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