ASTROSAT CZTI

Data Quality Report

Orbit 45850

Creation date: 2024-06-27T23:16:53.273447
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_186T01_9000006130_45850cztM0_level2.fits modeM0/AS1T05_186T01_9000006130_45850cztM0_level2_quad_clean.evt
Size (bytes)572,005,440109,964,160
Size545.5 MB 104.9 MB
Events in quadrant A5,892,842748,371
Events in quadrant B6,713,966718,127
Events in quadrant C3,114,157760,246
Events in quadrant D4,956,078655,506

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0216272
B0244112
C0135042
D0191122

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0170
C0170
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64141933.009043%
B641490614.125351%
C6414280.436545%
D64144326.735267%

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 7624 6415 19 19 0.25% 0.30%
B 7624 6415 592 592 7.76% 9.23%
C 7624 6415 7 7 0.09% 0.11%
D 7624 6415 362 362 4.75% 5.64%

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 2898733 18045.51 768 754 160.6
A 13 254 10749 62.24 768 754 160.6
A 3 137 8316 47.09 768 754 160.6
B 3 112 3376996 23166.22 748 727 145.7
B 0 189 134833 920.17 748 727 145.7
B 0 171 77237 524.97 748 727 145.7
C 3 233 68961 383.92 760 766 177.6
C 12 249 43345 239.71 760 766 177.6
C 12 2 26448 144.58 760 766 177.6
D 12 2 601402 3246.59 736 714 185.0
D 13 249 575557 3106.9 736 714 185.0
D 2 249 219330 1181.57 736 714 185.0

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