ASTROSAT CZTI

Data Quality Report

Orbit 41111

Creation date: 2024-06-27T22:24:35.822153
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/AS1A12_044T19_9000005600_41111cztM0_level2.fits modeM0/AS1A12_044T19_9000005600_41111cztM0_level2_quad_clean.evt
Size (bytes)208,172,16060,264,000
Size198.5 MB 57.5 MB
Events in quadrant A1,870,674413,717
Events in quadrant B1,643,497424,248
Events in quadrant C1,886,971392,782
Events in quadrant D2,045,763359,682

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0660
B0660
C0660
D0660

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A073651
B068591
C075551
D081731

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3305130.393343%
B3305150.453858%
C3305421.270802%
D3305872.632375%

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 3305 3305 1 1 0.03% 0.03%
B 3305 3305 11 11 0.33% 0.33%
C 3305 3305 20 20 0.61% 0.61%
D 3305 3305 81 81 2.45% 2.45%

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 295690 3541.97 403 395 83.4
A 2 79 13400 155.99 403 395 83.4
A 13 254 5537 61.68 403 395 83.4
B 0 245 70375 907.84 395 385 77.1
B 0 190 11772 147.7 395 385 77.1
B 12 111 9569 119.13 395 385 77.1
C 14 254 202612 2237.98 383 385 90.4
C 15 214 143004 1578.32 383 385 90.4
C 0 10 35261 385.96 383 385 90.4
D 2 249 382294 4050.83 387 377 94.3
D 13 249 70725 746.15 387 377 94.3
D 6 239 40954 430.38 387 377 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