ASTROSAT CZTI

Data Quality Report

Orbit 10800

Creation date: 2024-06-27T16:04:04.221186
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/AS1A03_071T01_9000001562_10800cztM0_level2.evt modeM0/AS1A03_071T01_9000001562_10800cztM0_level2_quad_clean.evt
Size (bytes)265,872,96044,942,400
Size253.6 MB 42.9 MB
Events in quadrant A1,714,329309,935
Events in quadrant B2,634,016210,085
Events in quadrant C1,667,526318,878
Events in quadrant D1,805,198283,039

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0217
B0217
C0217
D0216

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0151857635
B03158022017
C0149187498
D01879811123

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A014868
B014874
C014866
D014872

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3632320.881057%
B262349018.680900%
C3625300.827586%
D3347371.105468%

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 9282 4877 0 0 0.00% 0.00%
B 9278 3554 308 308 3.32% 8.67%
C 9282 4887 0 0 0.00% 0.00%
D 9281 4561 12 12 0.13% 0.26%

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 15 174 14735 160.34 432 422 89.3
A 13 251 12771 138.34 432 422 89.3
A 8 5 10915 117.55 432 422 89.3
B 0 85 664183 11798.23 287 280 56.3
B 4 239 536135 9522.68 287 280 56.3
B 4 81 223403 3965.12 287 280 56.3
C 13 61 3146 27.15 427 429 100.1
C 12 4 1643 12.13 427 429 100.1
C 14 234 1442 10.12 427 429 100.1
D 13 138 102520 1082.88 388 378 94.3
D 12 233 96839 1022.65 388 378 94.3
D 9 85 61894 652.17 388 378 94.3

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