ASTROSAT CZTI

Data Quality Report

Orbit 47708

Creation date: 2024-07-24T17:36:57.050266
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_47708cztM0_level2.fits modeM0/AS1T05_213T01_9000006344_47708cztM0_level2_quad_clean.evt
Size (bytes)568,399,68096,883,200
Size542.1 MB 92.4 MB
Events in quadrant A6,211,344675,126
Events in quadrant B5,851,803543,672
Events in quadrant C2,743,595682,511
Events in quadrant D5,762,573607,700

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0233811
B0215341
C0126741
D0213191

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60781953.208292%
B6078139422.935176%
C6079330.542852%
D60793505.757526%

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 7228 6078 22 22 0.30% 0.36%
B 7227 6077 1247 1247 17.25% 20.52%
C 7229 6080 15 15 0.21% 0.25%
D 7229 6079 304 304 4.21% 5.00%

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 10 83 3457119 24676.87 679 665 140.1
A 9 191 89011 630.73 679 665 140.1
A 13 248 29823 208.17 679 665 140.1
B 0 200 3055398 27300.99 574 556 111.9
B 5 255 428452 3824.09 574 556 111.9
B 4 21 56370 498.81 574 556 111.9
C 12 2 104169 661.54 666 667 156.5
C 14 254 34702 217.54 666 667 156.5
C 6 247 7736 45.18 666 667 156.5
D 2 165 2671407 15950.64 665 642 167.4
D 2 249 285762 1702.83 665 642 167.4
D 12 16 47060 277.22 665 642 167.4

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