ASTROSAT CZTI

Data Quality Report

Orbit 05354

Creation date: 2024-06-27T14:54:14.352114
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_106T01_9000000678_05354cztM0_level2.evt modeM0/AS1G05_106T01_9000000678_05354cztM0_level2_quad_clean.evt
Size (bytes)470,537,28076,458,240
Size448.7 MB 72.9 MB
Events in quadrant A3,055,079481,732
Events in quadrant B3,507,719489,785
Events in quadrant C3,078,227480,336
Events in quadrant D4,185,426427,763

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132303
B0144482
C0132492
D0169552

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0230

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6240681.089744%
B6240600.961538%
C6240190.304487%
D62405448.717949%

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 7555 6241 21 21 0.28% 0.34%
B 7555 6240 24 24 0.32% 0.38%
C 7555 6241 0 0 0.00% 0.00%
D 7555 6241 480 480 6.35% 7.69%

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 15 174 84224 547.5 751 736 152.5
A 0 50 81732 531.16 751 736 152.5
A 0 226 7606 45.05 751 736 152.5
B 10 16 211053 1439.33 768 752 146.1
B 4 81 95712 649.92 768 752 146.1
B 4 80 81895 555.35 768 752 146.1
C 1 16 210856 1243.47 730 734 169.0
C 14 67 19497 111.04 730 734 169.0
C 13 61 5991 31.11 730 734 169.0
D 2 16 1278231 7374.98 698 676 173.2
D 2 136 67540 385.99 698 676 173.2
D 4 95 59680 340.61 698 676 173.2

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