ASTROSAT CZTI

Data Quality Report

Orbit 06705

Creation date: 2024-06-27T15:10:37.305740
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_135T02_9000000918_06705cztM0_level2.evt modeM0/AS1G06_135T02_9000000918_06705cztM0_level2_quad_clean.evt
Size (bytes)577,725,12097,453,440
Size551.0 MB 92.9 MB
Events in quadrant A4,301,283603,899
Events in quadrant B3,430,924635,484
Events in quadrant C3,220,169630,744
Events in quadrant D6,039,320563,331

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0181202
B0156121
C0152821
D0233001

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A74423364.514915%
B74421662.230583%
C7442791.061543%
D7442110714.875034%

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 7652 7444 171 171 2.23% 2.30%
B 7652 7444 4 4 0.05% 0.05%
C 7652 7444 0 0 0.00% 0.00%
D 7652 7444 792 792 10.35% 10.64%

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 14 111 1073937 6293.82 824 803 170.5
A 15 234 36416 208.87 824 803 170.5
A 8 15 11731 64.09 824 803 170.5
B 11 51 53449 317.94 847 825 165.5
B 0 197 24842 145.1 847 825 165.5
B 12 111 16535 94.92 847 825 165.5
C 9 247 29941 152.78 815 818 190.6
C 10 22 9505 45.57 815 818 190.6
C 13 61 6579 30.22 815 818 190.6
D 2 33 2616435 13949.28 752 724 187.5
D 8 195 234531 1246.87 752 724 187.5
D 2 14 147084 780.52 752 724 187.5

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