ASTROSAT CZTI

Data Quality Report

Orbit 30360

Creation date: 2024-06-27T20:14:15.163986
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_053T15_9000004364_30360cztM0_level2.evt modeM0/AS1A10_053T15_9000004364_30360cztM0_level2_quad_clean.evt
Size (bytes)744,770,88091,195,200
Size710.3 MB 87.0 MB
Events in quadrant A3,244,411598,567
Events in quadrant B5,170,460602,040
Events in quadrant C10,229,655497,028
Events in quadrant D3,445,375583,023

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141331
B0207631
C0352986
D0147621

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6891831.204470%
B68921452.103889%
C6891238234.566826%
D6891891.291540%

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 7211 6891 2 2 0.03% 0.03%
B 7212 6892 0 0 0.00% 0.00%
C 7211 6891 1733 1733 24.03% 25.15%
D 7211 6892 20 20 0.28% 0.29%

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 13 254 13773 76.76 833 814 168.8
A 8 192 11615 63.98 833 814 168.8
A 12 96 9736 52.85 833 814 168.8
B 6 159 1919232 12071.34 819 798 158.9
B 0 190 21940 133.03 819 798 158.9
B 12 111 20164 121.86 819 798 158.9
C 3 233 7292313 42978.54 721 724 169.7
C 14 238 112052 656.2 721 724 169.7
C 2 114 14443 80.86 721 724 169.7
D 2 250 156216 802.3 815 795 193.7
D 8 195 128461 659.03 815 795 193.7
D 13 249 36284 183.2 815 795 193.7

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