ASTROSAT CZTI

Data Quality Report

Orbit 19675

Creation date: 2024-06-27T18:05:40.626953
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/AS1T03_037T01_9000002930_19675cztM0_level2.evt modeM0/AS1T03_037T01_9000002930_19675cztM0_level2_quad_clean.evt
Size (bytes)226,627,20039,709,440
Size216.1 MB 37.9 MB
Events in quadrant A1,439,812245,197
Events in quadrant B1,867,673244,683
Events in quadrant C1,578,074240,978
Events in quadrant D1,752,125237,257

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A066090
B077680
C067230
D074480

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0660
B0660
C0660
D0660

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A329230.091130%
B3293722.186456%
C3293100.303674%
D3293351.062861%

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 3292 3292 0 0 0.00% 0.00%
B 3293 3293 51 51 1.55% 1.55%
C 3293 3293 0 0 0.00% 0.00%
D 3293 3293 34 34 1.03% 1.03%

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 11 29 15531 201.51 367 360 75.3
A 5 16 8209 104.26 367 360 75.3
A 0 226 3164 37.25 367 360 75.3
B 3 112 385598 5552.54 361 351 69.4
B 7 220 29368 418.22 361 351 69.4
B 6 36 10710 149.3 361 351 69.4
C 3 233 100691 1206.06 351 352 83.2
C 14 238 55133 658.46 351 352 83.2
C 9 221 49397 589.51 351 352 83.2
D 9 1 166261 1887.38 358 346 87.9
D 12 218 110767 1256.11 358 346 87.9
D 1 52 56922 643.59 358 346 87.9

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