ASTROSAT CZTI

Data Quality Report

Orbit 07740

Creation date: 2024-06-27T15:23:21.478988
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/AS1G06_064T01_9000001066_07740cztM0_level2.evt modeM0/AS1G06_064T01_9000001066_07740cztM0_level2_quad_clean.evt
Size (bytes)420,704,64097,004,160
Size401.2 MB 92.5 MB
Events in quadrant A2,944,619627,798
Events in quadrant B3,224,345641,253
Events in quadrant C2,974,839624,405
Events in quadrant D3,155,390591,233

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132102
B0139221
C0132141
D0136091

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6502170.261458%
B6502270.415257%
C6502170.261458%
D6502280.430637%

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 7562 6503 2 2 0.03% 0.03%
B 7562 6503 2 2 0.03% 0.03%
C 7562 6503 1 1 0.01% 0.02%
D 7562 6503 16 16 0.21% 0.25%

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 13 170 9622 56.92 760 741 156.0
A 0 226 7096 40.73 760 741 156.0
A 12 194 6691 38.13 760 741 156.0
B 4 173 157243 1062.99 771 752 147.2
B 4 239 33309 221.15 771 752 147.2
B 0 214 22249 146.02 771 752 147.2
C 9 68 19982 110.09 748 752 174.7
C 9 243 12673 68.25 748 752 174.7
C 8 128 10447 55.5 748 752 174.7
D 7 203 153817 836.92 740 715 182.9
D 2 136 40963 220.01 740 715 182.9
D 2 152 40219 215.95 740 715 182.9

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