ASTROSAT CZTI

Data Quality Report

Orbit 05281

Creation date: 2024-06-27T14:53:26.732956
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/AS1G05_240T02_9000000670_05281cztM0_level2.evt modeM0/AS1G05_240T02_9000000670_05281cztM0_level2_quad_clean.evt
Size (bytes)554,564,16089,015,040
Size528.9 MB 84.9 MB
Events in quadrant A3,429,560564,993
Events in quadrant B3,420,911582,976
Events in quadrant C3,220,701565,200
Events in quadrant D6,255,645501,455

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147913
B0146512
C0142082
D0233152

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68941231.784160%
B6894540.783290%
C6894210.304613%
D689484612.271540%

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 9319 6896 43 43 0.46% 0.62%
B 9319 6896 5 5 0.05% 0.07%
C 9319 6896 0 0 0.00% 0.00%
D 9319 6895 691 691 7.41% 10.02%

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 0 50 224602 1333.46 828 810 167.8
A 13 251 17589 99.98 828 810 167.8
A 12 194 8113 43.51 828 810 167.8
B 4 48 32706 198.43 849 831 160.6
B 15 204 29296 177.21 849 831 160.6
B 10 16 27971 168.96 849 831 160.6
C 1 16 18778 94.99 818 823 189.0
C 13 61 6702 31.1 818 823 189.0
C 7 190 5553 25.02 818 823 189.0
D 11 145 2830936 14942.62 763 739 189.4
D 2 136 286394 1508.18 763 739 189.4
D 8 195 149383 784.8 763 739 189.4

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