ASTROSAT CZTI

Data Quality Report

Orbit 25242

Creation date: 2024-06-27T19:15:24.738929
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/AS1A07_097T01_9000003692_25242cztM0_level2.evt modeM0/AS1A07_097T01_9000003692_25242cztM0_level2_quad_clean.evt
Size (bytes)432,728,64050,497,920
Size412.7 MB 48.2 MB
Events in quadrant A2,420,816322,085
Events in quadrant B2,422,954326,433
Events in quadrant C4,830,725260,545
Events in quadrant D3,121,439299,587

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A097150
B096960
C0171930
D0123810

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0104
B083
C0105
D083

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4529511.126076%
B4546561.231852%
C4520117726.039823%
D4522962.122954%

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 7093 4562 0 0 0.00% 0.00%
B 7095 4575 0 0 0.00% 0.00%
C 7092 4545 826 826 11.65% 18.17%
D 7094 4550 41 41 0.58% 0.90%

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 3 1 13772 105.41 624 615 124.8
A 13 254 7472 54.94 624 615 124.8
A 0 226 5460 38.82 624 615 124.8
B 0 229 15234 127.2 610 597 115.1
B 0 190 14732 122.83 610 597 115.1
B 12 111 13694 113.81 610 597 115.1
C 0 239 2369982 19180.19 531 535 123.5
C 2 16 155788 1256.74 531 535 123.5
C 7 247 135724 1094.33 531 535 123.5
D 8 195 361001 2463.03 599 584 146.3
D 10 70 151288 1029.88 599 584 146.3
D 1 239 94118 639.2 599 584 146.3

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