ASTROSAT CZTI

Data Quality Report

Orbit 08132

Creation date: 2024-06-27T15:28:25.260954
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/AS1A02_178T01_9000001118_08132cztM0_level2.evt modeM0/AS1A02_178T01_9000001118_08132cztM0_level2_quad_clean.evt
Size (bytes)582,399,36079,084,800
Size555.4 MB 75.4 MB
Events in quadrant A5,985,188461,671
Events in quadrant B3,726,158491,153
Events in quadrant C3,523,817485,135
Events in quadrant D3,920,457461,736

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0226473
B0157722
C0152642
D0165202

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7107126317.771211%
B71071952.743774%
C71071512.124666%
D71072573.616153%

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 9291 7106 1067 1067 11.48% 15.02%
B 9292 7107 21 21 0.23% 0.30%
C 9292 7108 0 0 0.00% 0.00%
D 9292 7107 72 72 0.77% 1.01%

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 13 170 2845569 17260.39 808 791 164.8
A 8 15 22272 130.33 808 791 164.8
A 0 226 7689 41.85 808 791 164.8
B 10 16 91318 521.75 913 890 173.3
B 0 214 73610 419.58 913 890 173.3
B 12 111 18205 99.9 913 890 173.3
C 1 16 64266 309.5 886 893 204.8
C 13 61 6685 28.29 886 893 204.8
C 8 222 4422 17.23 886 893 204.8
D 13 122 431217 1812.28 873 857 237.5
D 1 52 78285 326.06 873 857 237.5
D 10 102 42196 174.08 873 857 237.5

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