ASTROSAT CZTI

Data Quality Report

Orbit 10100

Creation date: 2024-06-27T15:55:00.318067
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/AS1G07_072T01_9000001452_10100cztM0_level2.evt modeM0/AS1G07_072T01_9000001452_10100cztM0_level2_quad_clean.evt
Size (bytes)450,961,92092,825,280
Size430.1 MB 88.5 MB
Events in quadrant A3,161,341591,313
Events in quadrant B3,346,513602,054
Events in quadrant C3,114,680595,653
Events in quadrant D3,593,854569,478

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136503
B0140932
C0136202
D0148252

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6488841.294698%
B64881001.541307%
C6488771.186806%
D64881161.787916%

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 7623 6488 0 0 0.00% 0.00%
B 7623 6488 4 4 0.05% 0.06%
C 7623 6488 0 0 0.00% 0.00%
D 7623 6488 33 33 0.43% 0.51%

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 12518 71.57 815 799 163.7
A 0 226 7536 41.14 815 799 163.7
A 12 194 6872 37.09 815 799 163.7
B 0 214 89646 579.66 813 794 153.3
B 4 239 37753 241.12 813 794 153.3
B 0 230 17628 109.82 813 794 153.3
C 14 67 12339 63.58 786 792 181.6
C 14 234 10972 56.05 786 792 181.6
C 8 128 10697 54.54 786 792 181.6
D 1 52 245654 1184.04 782 763 206.8
D 7 71 118827 570.84 782 763 206.8
D 8 195 78014 373.51 782 763 206.8

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