ASTROSAT CZTI

Data Quality Report

Orbit 33584

Creation date: 2024-06-27T20:50:26.675321
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/AS1A11_060T01_9000004808_33584cztM0_level2.evt modeM0/AS1A11_060T01_9000004808_33584cztM0_level2_quad_clean.evt
Size (bytes)503,651,52059,929,920
Size480.3 MB 57.2 MB
Events in quadrant A2,653,098378,371
Events in quadrant B4,003,543361,402
Events in quadrant C3,483,834370,032
Events in quadrant D4,766,114345,913

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0107172
B0150341
C0137251
D0177561

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0340
B0340
C0340
D0350

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A511880.156311%
B51184859.476358%
C51181142.227433%
D51184128.050020%

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 7241 5119 0 0 0.00% 0.00%
B 7241 5118 385 385 5.32% 7.52%
C 7241 5119 111 111 1.53% 2.17%
D 7241 5119 409 409 5.65% 7.99%

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 15 169 209894 1646.26 629 619 127.1
A 13 254 8147 59.22 629 619 127.1
A 3 137 6016 42.46 629 619 127.1
B 5 172 1503253 13146.55 607 593 114.3
B 0 190 54405 470.79 607 593 114.3
B 4 171 27665 236.85 607 593 114.3
C 3 233 461855 3228.57 619 627 142.9
C 0 10 374590 2617.72 619 627 142.9
C 15 214 217282 1516.57 619 627 142.9
D 1 47 1022504 6937.06 603 587 147.3
D 8 195 509198 3452.6 603 587 147.3
D 13 249 305795 2071.84 603 587 147.3

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