ASTROSAT CZTI

Data Quality Report

Orbit 46507

Creation date: 2024-06-27T23:24:00.629695
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_068T06_9000006220_46507cztM0_level2.fits modeM0/AS1A13_068T06_9000006220_46507cztM0_level2_quad_clean.evt
Size (bytes)233,490,24053,804,160
Size222.7 MB 51.3 MB
Events in quadrant A3,120,817352,099
Events in quadrant B1,701,761372,881
Events in quadrant C1,494,626353,732
Events in quadrant D2,061,623310,905

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0680
B0680
C0680
D0680

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0112371
B073601
C069231
D084821

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C040
D040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A33771313.879183%
B3377772.280130%
C3377130.384957%
D33771775.241338%

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 3377 3377 5 5 0.15% 0.15%
B 3377 3377 26 26 0.77% 0.77%
C 3377 3377 0 0 0.00% 0.00%
D 3377 3377 134 134 3.97% 3.97%

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 1598302 19731.33 380 370 81.0
A 13 6 25074 305.04 380 370 81.0
A 7 3 12126 145.16 380 370 81.0
B 5 172 110021 1414.38 380 368 77.5
B 15 201 32234 411.03 380 368 77.5
B 0 190 22768 288.93 380 368 77.5
C 9 237 13231 142.56 377 380 90.1
C 7 220 7241 76.11 377 380 90.1
C 13 61 2599 24.62 377 380 90.1
D 13 249 504426 5332.69 370 359 94.5
D 2 249 54362 571.32 370 359 94.5
D 8 176 25743 268.55 370 359 94.5

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