ASTROSAT CZTI

Data Quality Report

Orbit 45864

Creation date: 2024-06-27T23:17:03.395481
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/AS1T05_187T01_9000006132_45864cztM0_level2.fits modeM0/AS1T05_187T01_9000006132_45864cztM0_level2_quad_clean.evt
Size (bytes)240,802,56052,297,920
Size229.6 MB 49.9 MB
Events in quadrant A2,637,986349,153
Events in quadrant B3,136,003345,506
Events in quadrant C1,376,107350,021
Events in quadrant D1,520,507317,627

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0660
B0660
C0660
D0660

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0101451
B0115841
C063871
D068231

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3107792.542646%
B31082959.491634%
C3108130.418275%
D3108300.965251%

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 4167 3108 17 17 0.41% 0.55%
B 4168 3108 191 191 4.58% 6.15%
C 4168 3109 1 1 0.02% 0.03%
D 4168 3109 18 18 0.43% 0.58%

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 10 83 1328163 18539.64 338 332 71.6
A 13 254 5037 65.69 338 332 71.6
A 3 137 3671 46.62 338 332 71.6
B 3 112 1594642 24058.79 333 322 66.3
B 4 171 153439 2310.58 333 322 66.3
B 5 172 39929 597.68 333 322 66.3
C 12 2 23345 281.65 346 348 81.7
C 13 61 2261 23.43 346 348 81.7
C 3 233 2260 23.42 346 348 81.7
D 2 249 66891 767.19 338 328 86.8
D 1 52 50375 576.83 338 328 86.8
D 6 143 43007 491.91 338 328 86.8

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