ASTROSAT CZTI

Data Quality Report

Orbit 25417

Creation date: 2024-06-27T19:17:25.794837
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/AS1A09_047T01_9000003714_25417cztM0_level2.evt modeM0/AS1A09_047T01_9000003714_25417cztM0_level2_quad_clean.evt
Size (bytes)487,944,000113,880,960
Size465.3 MB 108.6 MB
Events in quadrant A3,422,671782,989
Events in quadrant B3,209,222784,795
Events in quadrant C3,278,347751,020
Events in quadrant D4,481,296732,469

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138500
B0130890
C0134990
D0175360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5690761.335677%
B5691881.546301%
C56911452.547883%
D56911672.934458%

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 7015 5690 0 0 0.00% 0.00%
B 7016 5691 4 4 0.06% 0.07%
C 7016 5691 2 2 0.03% 0.04%
D 7016 5691 98 98 1.40% 1.72%

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 6 16 277059 1724.39 816 804 160.2
A 13 254 7888 44.22 816 804 160.2
A 0 226 7037 38.91 816 804 160.2
B 3 112 34673 229.81 793 776 147.5
B 0 190 26889 177.04 793 776 147.5
B 15 33 21849 142.87 793 776 147.5
C 14 238 128656 721.29 774 780 177.3
C 7 247 79221 442.45 774 780 177.3
C 2 16 51742 287.46 774 780 177.3
D 1 52 630992 3385.83 792 772 186.1
D 8 195 560989 3009.75 792 772 186.1
D 2 82 129414 691.12 792 772 186.1

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