ASTROSAT CZTI

Data Quality Report

Orbit 48024

Creation date: 2024-08-15T01:05:04.107549
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/AS1A13_053T01_9000006388_48024cztM0_level2.fits modeM0/AS1A13_053T01_9000006388_48024cztM0_level2_quad_clean.evt
Size (bytes)477,103,680105,615,360
Size455.0 MB 100.7 MB
Events in quadrant A7,121,705678,902
Events in quadrant B3,267,385732,729
Events in quadrant C3,251,209699,735
Events in quadrant D3,517,869634,727

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0170
C0170
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0256114
B0144432
C0143632
D0153792

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64774276.592558%
B6477891.374093%
C64771051.621121%
D64771983.056971%

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 7572 6478 117 117 1.55% 1.81%
B 7572 6478 19 19 0.25% 0.29%
C 7572 6478 68 68 0.90% 1.05%
D 7572 6478 128 128 1.69% 1.98%

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 4235634 28895.75 707 691 146.6
A 13 248 126895 861.11 707 691 146.6
A 7 3 21256 140.32 707 691 146.6
B 0 200 224679 1584.29 719 699 141.4
B 7 221 53908 376.37 719 699 141.4
B 0 198 48147 335.62 719 699 141.4
C 12 2 342066 2092.25 700 703 163.2
C 10 20 74720 453.66 700 703 163.2
C 15 208 36904 221.88 700 703 163.2
D 2 249 496026 2848.95 694 671 173.9
D 12 2 88006 502.29 694 671 173.9
D 11 192 54464 309.38 694 671 173.9

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