ASTROSAT CZTI

Data Quality Report

Orbit 30443

Creation date: 2024-06-27T20:15:19.080475
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/AS1A10_121T02_9000004378_30443cztM0_level2.evt modeM0/AS1A10_121T02_9000004378_30443cztM0_level2_quad_clean.evt
Size (bytes)649,154,88099,478,080
Size619.1 MB 94.9 MB
Events in quadrant A3,353,319668,164
Events in quadrant B5,296,188669,821
Events in quadrant C3,787,768658,744
Events in quadrant D6,783,927563,432

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140162
B0199842
C0153752
D0246156

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0200
C0200
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6478941.451065%
B64781442.222908%
C64783144.847175%
D6477151623.405898%

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 7568 6478 7 7 0.09% 0.11%
B 7568 6478 0 0 0.00% 0.00%
C 7568 6478 105 105 1.39% 1.62%
D 7566 6476 1220 1220 16.12% 18.84%

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 13 75869 448.29 840 824 167.4
A 8 192 24214 139.72 840 824 167.4
A 13 254 11770 65.39 840 824 167.4
B 6 159 1895865 11970.35 836 817 158.3
B 15 33 45426 281.78 836 817 158.3
B 0 229 41551 257.3 836 817 158.3
C 0 10 257415 1365.81 809 815 187.9
C 14 238 131880 697.62 809 815 187.9
C 3 233 120888 639.12 809 815 187.9
D 13 104 3379666 17757.41 740 727 190.3
D 13 249 300623 1576.05 740 727 190.3
D 8 195 146606 766.64 740 727 190.3

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