ASTROSAT CZTI

Data Quality Report

Orbit 47707

Creation date: 2024-07-24T15:59:29.336951
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_213T01_9000006344_47707cztM0_level2.fits modeM0/AS1T05_213T01_9000006344_47707cztM0_level2_quad_clean.evt
Size (bytes)526,815,360116,521,920
Size502.4 MB 111.1 MB
Events in quadrant A7,032,550766,041
Events in quadrant B3,146,367805,569
Events in quadrant C3,114,186780,131
Events in quadrant D5,686,519707,282

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260125
B0138612
C0140142
D0216022

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67283064.548157%
B6728580.862069%
C6728640.951249%
D67282513.730678%

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 7909 6728 76 76 0.96% 1.13%
B 7909 6728 1 1 0.01% 0.01%
C 7909 6728 5 5 0.06% 0.07%
D 7909 6728 173 173 2.19% 2.57%

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 3951610 25036.65 775 759 157.8
A 9 191 74682 468.45 775 759 157.8
A 7 3 11964 71.01 775 759 157.8
B 4 21 45852 303.71 770 747 148.5
B 0 200 40612 268.43 770 747 148.5
B 12 111 18709 120.94 770 747 148.5
C 12 2 93941 515.21 769 773 180.8
C 14 254 21918 116.93 769 773 180.8
C 13 61 5031 23.54 769 773 180.8
D 2 165 2287075 11930.66 770 744 191.6
D 12 2 170784 887.31 770 744 191.6
D 2 249 149093 774.12 770 744 191.6

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