ASTROSAT CZTI

Data Quality Report

Orbit 22815

Creation date: 2024-06-27T18:46:08.919109
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/AS1A07_054T01_9000003370_22815cztM0_level2.evt modeM0/AS1A07_054T01_9000003370_22815cztM0_level2_quad_clean.evt
Size (bytes)218,456,64066,908,160
Size208.3 MB 63.8 MB
Events in quadrant A1,553,242464,935
Events in quadrant B1,559,179456,849
Events in quadrant C1,549,124428,337
Events in quadrant D1,719,182432,762

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A068940
B068950
C068610
D073140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0700
B0700
C0700
D0700

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A342600.000000%
B342740.116720%
C3427120.350160%
D3427110.320980%

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 3426 3426 0 0 0.00% 0.00%
B 3427 3427 0 0 0.00% 0.00%
C 3427 3427 0 0 0.00% 0.00%
D 3427 3427 10 10 0.29% 0.29%

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 13 252 11620 139.03 399 392 80.8
A 13 254 6587 76.71 399 392 80.8
A 0 226 3494 38.41 399 392 80.8
B 0 228 9808 126.56 393 384 74.5
B 12 111 8360 107.11 393 384 74.5
B 0 230 8307 106.4 393 384 74.5
C 14 238 62254 691.36 381 383 89.5
C 13 61 2666 25.51 381 383 89.5
C 0 207 1177 8.87 381 383 89.5
D 1 52 71089 747.63 390 379 94.6
D 8 195 65444 687.95 390 379 94.6
D 9 85 36909 386.24 390 379 94.6

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