ASTROSAT CZTI

Data Quality Report

Orbit 48036

Creation date: 2024-08-15T23:09:06.288149
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/AS1A13_053T01_9000006388_48036cztM0_level2.fits modeM0/AS1A13_053T01_9000006388_48036cztM0_level2_quad_clean.evt
Size (bytes)1,528,787,520335,036,160
Size1.4 GB 319.5 MB
Events in quadrant A22,544,4792,167,466
Events in quadrant B9,877,2532,264,151
Events in quadrant C9,394,2282,227,482
Events in quadrant D13,103,6301,995,279

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0230

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04400
B04400
C04400
D04400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0829894
B0452725
C0446044
D0548704

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2162910985.076518%
B216285002.311818%
C216293111.437884%
D2162910564.882334%

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 23919 21633 238 238 1.00% 1.10%
B 23918 21632 15 15 0.06% 0.07%
C 23919 21633 10 10 0.04% 0.05%
D 23919 21633 523 523 2.19% 2.42%

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 12578694 25979.55 2333 2279 484.1
A 0 31 803966 1656.07 2333 2279 484.1
A 7 3 45347 88.97 2333 2279 484.1
B 0 200 155081 331.67 2349 2273 460.7
B 5 255 149657 319.9 2349 2273 460.7
B 7 221 128365 273.68 2349 2273 460.7
C 14 254 67182 118.77 2339 2349 545.9
C 14 67 54631 95.78 2339 2349 545.9
C 12 2 53633 93.95 2339 2349 545.9
D 2 165 1875210 3256.29 2301 2229 575.2
D 2 120 756720 1311.73 2301 2229 575.2
D 13 29 493985 854.95 2301 2229 575.2

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