ASTROSAT CZTI

Data Quality Report

Orbit 44401

Creation date: 2024-06-27T23:03:08.886749
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_008T08_9000005998_44401cztM0_level2.fits modeM0/AS1A13_008T08_9000005998_44401cztM0_level2_quad_clean.evt
Size (bytes)467,357,760104,218,560
Size445.7 MB 99.4 MB
Events in quadrant A4,585,755714,373
Events in quadrant B3,346,767734,433
Events in quadrant C3,188,964696,956
Events in quadrant D5,708,592587,693

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0186541
B0137801
C0135201
D0210481

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60511482.445877%
B60511432.363246%
C6052921.520159%
D605276912.706543%

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 7211 6052 4 4 0.06% 0.07%
B 7211 6052 32 32 0.44% 0.53%
C 7212 6052 19 19 0.26% 0.31%
D 7212 6052 654 654 9.07% 10.81%

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 1638148 10764.69 732 718 152.1
A 13 248 51591 334.45 732 718 152.1
A 0 243 39650 255.94 732 718 152.1
B 5 235 96019 662.94 726 705 143.8
B 0 155 90470 624.34 726 705 143.8
B 0 219 78037 537.87 726 705 143.8
C 14 254 386705 2323.0 702 707 166.2
C 3 233 37215 219.71 702 707 166.2
C 12 250 10365 58.12 702 707 166.2
D 2 249 550699 3223.35 679 658 170.6
D 6 239 548743 3211.89 679 658 170.6
D 4 221 485442 2840.93 679 658 170.6

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