ASTROSAT CZTI

Data Quality Report

Orbit 03254

Creation date: 2024-06-27T14:26:45.851485
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/AS1G05_104T01_9000000440_03254cztM0_level2.evt modeM0/AS1G05_104T01_9000000440_03254cztM0_level2_quad_clean.evt
Size (bytes)443,073,60087,143,040
Size422.5 MB 83.1 MB
Events in quadrant A2,935,589559,527
Events in quadrant B3,801,092558,058
Events in quadrant C3,169,992546,108
Events in quadrant D3,070,244521,981

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133833
B0157662
C0141552
D0141012

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6497140.215484%
B6497550.846545%
C6497180.277051%
D6497580.892720%

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 7637 6498 3 3 0.04% 0.05%
B 7637 6498 6 6 0.08% 0.09%
C 7637 6498 11 11 0.14% 0.17%
D 7637 6498 36 36 0.47% 0.55%

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 0 118 49935 322.65 741 727 152.5
A 0 50 23038 146.29 741 727 152.5
A 0 226 12220 75.36 741 727 152.5
B 15 204 789532 5388.44 759 742 146.4
B 5 200 34254 228.93 759 742 146.4
B 0 229 21984 145.11 759 742 146.4
C 14 223 142965 845.38 720 725 168.3
C 12 175 127018 750.6 720 725 168.3
C 6 80 73978 435.37 720 725 168.3
D 13 114 189142 1095.5 708 690 172.0
D 13 223 67220 386.75 708 690 172.0
D 13 239 39282 224.34 708 690 172.0

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