ASTROSAT CZTI

Data Quality Report

Orbit 43388

Creation date: 2024-06-27T22:51:22.101517
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/AS1C07_001T10_9000005872_43388cztM0_level2.fits modeM0/AS1C07_001T10_9000005872_43388cztM0_level2_quad_clean.evt
Size (bytes)279,938,88078,448,320
Size267.0 MB 74.8 MB
Events in quadrant A2,570,799523,074
Events in quadrant B2,046,103547,324
Events in quadrant C2,334,762517,173
Events in quadrant D3,051,366464,438

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0940
B0940
C0940
D0940

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0360
B0370
C0370
D0370

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0104902
B093912
C098552
D0122292

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4604340.738488%
B4604110.238923%
C460460.130321%
D46041513.279757%

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 6757 4605 21 21 0.31% 0.46%
B 6757 4605 8 8 0.12% 0.17%
C 6757 4605 4 4 0.06% 0.09%
D 6757 4605 170 170 2.52% 3.69%

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 518308 5076.37 496 486 102.0
A 15 237 74223 722.87 496 486 102.0
A 7 3 40873 395.93 496 486 102.0
B 0 186 20377 209.0 498 485 95.2
B 5 172 19378 198.5 498 485 95.2
B 0 245 17072 174.28 498 485 95.2
C 15 214 193768 1737.74 483 486 111.2
C 3 233 169632 1520.74 483 486 111.2
C 15 111 72547 647.88 483 486 111.2
D 12 6 437134 3813.27 473 459 114.5
D 1 52 252313 2199.32 473 459 114.5
D 12 217 250949 2187.41 473 459 114.5

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