ASTROSAT CZTI

Data Quality Report

Orbit 43817

Creation date: 2024-06-27T22:56:09.240076
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_018T01_9000005906_43817cztM0_level2.fits modeM0/AS1A13_018T01_9000005906_43817cztM0_level2_quad_clean.evt
Size (bytes)707,250,240105,001,920
Size674.5 MB 100.1 MB
Events in quadrant A6,919,516674,838
Events in quadrant B5,109,397757,963
Events in quadrant C5,317,692683,681
Events in quadrant D8,286,499569,771

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0256552
B0198152
C0205892
D0295612

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A706697013.727710%
B70664646.566657%
C706576910.884643%
D7065142320.141543%

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 8751 7066 761 761 8.70% 10.77%
B 8750 7065 260 260 2.97% 3.68%
C 8750 7066 688 688 7.86% 9.74%
D 8750 7065 1201 1201 13.73% 17.00%

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 15 223 2609009 16325.74 766 749 159.8
A 10 83 999885 6253.84 766 749 159.8
A 14 254 230515 1438.16 766 749 159.8
B 5 235 1126658 7070.78 802 778 159.2
B 0 200 245133 1534.6 802 778 159.2
B 0 183 179875 1124.77 802 778 159.2
C 15 174 1771387 9961.06 751 755 177.8
C 15 158 362383 2034.41 751 755 177.8
C 3 233 115267 644.21 751 755 177.8
D 12 33 2550640 13634.72 724 702 187.0
D 10 102 1353163 7231.72 724 702 187.0
D 5 235 525324 2805.2 724 702 187.0

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