ASTROSAT CZTI

Data Quality Report

Orbit 09412

Creation date: 2024-06-27T15:45:44.050502
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_044T09_9000001334_09412cztM0_level2.evt modeM0/AS1G07_044T09_9000001334_09412cztM0_level2_quad_clean.evt
Size (bytes)424,218,24086,961,600
Size404.6 MB 82.9 MB
Events in quadrant A3,595,480542,554
Events in quadrant B3,002,055551,342
Events in quadrant C2,925,191552,010
Events in quadrant D2,888,091539,613

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0148736
B0133682
C0132452
D0132774

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6413811.263059%
B6415651.013250%
C6415230.358535%
D6414300.467727%

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 7065 6417 0 0 0.00% 0.00%
B 7065 6417 0 0 0.00% 0.00%
C 7065 6417 2 2 0.03% 0.03%
D 7065 6417 1 1 0.01% 0.02%

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 8 5 518665 3353.21 752 733 154.5
A 1 162 89219 572.88 752 733 154.5
A 1 178 30179 190.64 752 733 154.5
B 0 214 37627 253.01 757 735 145.8
B 12 111 16218 106.19 757 735 145.8
B 11 111 13288 86.09 757 735 145.8
C 4 254 21250 118.62 742 745 172.9
C 10 22 8884 47.08 742 745 172.9
C 13 61 5436 27.14 742 745 172.9
D 2 234 31270 172.04 737 719 177.6
D 7 71 18886 102.3 737 719 177.6
D 2 14 15340 82.33 737 719 177.6

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